
Classic Cashmere Flat Lashes
Create bold, fuller-looking classic lash sets without unnecessary weight with Lashes by RK Classic Cashmere Flat Lashes.
Made from premium Korean PBT, these lightweight 0.15 flat lashes feature a wider, flatter base that provides greater bonding surface compared with a traditional round classic lash. The result is a darker, more defined lash line while maintaining a soft and lightweight feel.
Perfect for lash artists wanting to create dramatic classic sets, textured sets or fuller-looking results for clients with finer, shorter or weaker natural lashes.
Why Lash Artists Love Our Cashmere Flat Lashes
-
Flat, wider base creates a larger bonding area
-
Creates the appearance of a darker and fuller lash line
-
Split-tip design provides a softer, fluffier finish
-
Made from high-quality Korean PBT fibre
-
Soft, flexible and comfortable to wear
-
Ideal for clients who want more definition from a classic set
-
Suitable for classic, wispy and textured lash styling
-
100% cruelty-free
-
Designed for professional lash artists
What Are Flat Lashes?
Flat lashes are individual eyelash extension fibres with a flattened base rather than the traditional round base found on standard classic lashes.
The wider base allows the extension to sit neatly against the natural lash while creating the appearance of greater density and definition.
Because of their shape, flat lashes can give your client a bolder classic lash look without needing the visual heaviness of a thicker traditional classic extension.
Cashmere Flat Lash Benefits
Fuller, Darker Classic Lash Sets
The flat shape creates greater visual width, helping produce a darker lash line and fuller-looking set while still using one extension per natural lash.
This makes them an ideal choice for clients who love the definition of classic extensions but want a little more drama.
Lightweight & Comfortable
Our 0.15 and 0.20 Cashmere Flat Lashes are designed to feel lightweight and comfortable while providing a bold finished result.
They are particularly useful when styling clients with finer natural lashes where you want to create the appearance of density without simply choosing a much thicker classic extension.
Wider Base for Easy Attachment
The flatter base provides a larger contact area between the extension and the natural lash, making placement easier and helping create a secure attachment when correct lash application and adhesive techniques are used.
Split Tips for a Soft Finish
Each flat lash features split tips that give the finished set a softer, fluffier appearance compared with the sharper finish traditionally associated with classic lash extensions.
Perfect for Classic, Wispy & Kim K Lash Sets
Want to create a textured Kim K or wispy lash set?
Combine our Classic Cashmere Flat Lashes with Lashes by RK Promade Fans.
Try applying Cashmere Flat Lashes to approximately 50% of the natural lashes, then use Volume Promade Fans throughout the remaining lashes.
For added texture and dimension, vary your lengths strategically according to your client's natural lashes, eye shape and desired styling.
This combination creates a beautiful mix of definition and softness for a textured, strip-lash-inspired finish.
How to Apply Cashmere Flat Lashes
These lashes are designed for single classic lash application.
For best attachment:
-
Isolate one healthy natural lash.
-
Pick up one Cashmere Flat Lash.
-
Dip the base into your lash adhesive according to your adhesive manufacturer's directions.
-
Attach the extension from the top or bottom of the natural lash so the flat base sits flush.
-
Avoid attaching the lash from the side, as this reduces the available contact area.
-
Always select an appropriate extension length and weight based on the health of your client's natural lashes.
Product Details
Type: Classic Flat Eyelash Extensions
Diameter: 0.15 or 0.20
Material: Premium Korean PBT
Tip: Split tip
Application: One extension per natural lash
Finish: Soft, fluffy and defined
Suitable for: Classic, wet-look-inspired and textured lash sets
Professional use: Yes
Cruelty-free: Yes
Who Are Cashmere Flat Lashes Best For?
Cashmere Flat Lashes are ideal for clients who:
-
Prefer classic eyelash extensions
-
Want a darker and more defined lash line
-
Love a fuller classic look without moving into a full volume set
-
Have naturally fine or shorter lashes and require careful weight selection
-
Want a soft, fluffy finish rather than a traditional sharp classic look
-
Love wispy or textured lash styling
Always assess the condition of the client's natural lashes before selecting extension length, diameter and styling.
Classic Flat Lashes vs Traditional Classic Lashes
Traditional classic lashes generally have a round base, while flat lashes have a wider, flattened base.
This changes both the appearance and attachment of the extension.
Traditional Classic Lashes
-
Round base
-
Clean and defined finish
-
Traditional classic appearance
Cashmere Flat Lashes
-
Flattened, wider base
-
Darker-looking lash line
-
Soft split-tip finish
-
Fuller appearance
-
Excellent for creating more definition while maintaining a classic 1:1 application technique
Frequently Asked Questions
What are cashmere flat lashes?
Cashmere flat lashes are lightweight individual eyelash extensions with a flattened base and soft split tips. They are applied using the traditional one-extension-to-one-natural-lash classic technique but create a fuller and darker appearance than many traditional round classic lashes.
Are flat lashes used for classic lash extensions?
Yes. Flat lashes are designed for classic 1:1 lash application, meaning one extension is attached to one suitable natural lash.
What is the difference between flat lashes and classic lashes?
The main difference is the shape of the extension. Traditional classic lashes usually have a round base, whereas flat lashes have a flattened, wider base. This creates greater visual width and can make a classic lash set appear darker and fuller.
Are Cashmere Flat Lashes suitable for weak natural lashes?
Their lightweight design can make them a useful option when working with finer natural lashes; however, lash artists should always assess each client's natural lash health and choose appropriate extension length and weight accordingly.
Do flat lashes have better retention?
The wider base provides a larger potential bonding surface when properly attached to the natural lash. Actual retention will also depend on application technique, adhesive choice, humidity, temperature, client aftercare and the natural lash growth cycle.
How should flat lashes be applied?
Flat lashes should be placed so the wider surface sits flush against the natural lash. Top or bottom attachment generally maximises the available bonding surface. Avoid attaching the narrow side of the flat lash to the natural lash.
Can I use Cashmere Flat Lashes for a Kim K set?
Yes. Flat lashes work beautifully in textured and wispy sets. They can be combined with Promade Fans to create definition through the base of the set while volume fans add softness and dimension.
What are Cashmere Flat Lashes made from?
Lashes by RK Cashmere Flat Lashes are made from high-quality Korean PBT fibre and are designed to provide a soft, lightweight feel for professional eyelash extension application.
Create Fuller Classic Lash Sets
Give your clients the definition of classic lashes with the soft, fuller appearance of flat lash technology.
Shop Lashes by RK Classic Cashmere Flat Lashes and create lightweight, dark and beautifully defined classic lash sets your clients will keep coming back for.
The more you spend across your cart, the more you save. Tier discounts are applied automatically at checkout — no code needed, and they stack with any bundle discount.
- Spend $200+−5%
- Spend $300+−8%
- Spend $500+−10%
Discount applies to the cart subtotal and is shown at checkout.
Shipping is automatically calculated at checkout — no code required.
Australian domestic orders
- Orders over $199: Free Express Shipping
- Orders under $199: Express Shipping $14.95
- Free shipping does not apply during sale periods
International orders
- Shipping rates vary by country — calculated at checkout
- Delivery up to 15 business days (varies by destination)
Estimate delivery times via Australia Post using postcode 3026 as the origin.
Read full shipping policyWe have a 30-day return policy — you have 30 days from the date of purchase to request a return.
Read full return policyClassic Cashmere Flat Lashes- Mixed Lengths
350,000+ trays shipped to lash pros worldwide
Discount applied at checkout · final price shown in cart
4 payments of NOK 39.00 · interest-free
Retention issues? Pair with our high-performance glue
→Stock up and save
The more you buy, the more you save
Frequently bought together
Pair this product with what other lash artists order alongside it. Untick anything you don't want.
Total for 3 items
NOK 709.00
Classic Cashmere Flat Lashes
Create bold, fuller-looking classic lash sets without unnecessary weight with Lashes by RK Classic Cashmere Flat Lashes.
Made from premium Korean PBT, these lightweight 0.15 flat lashes feature a wider, flatter base that provides greater bonding surface compared with a traditional round classic lash. The result is a darker, more defined lash line while maintaining a soft and lightweight feel.
Perfect for lash artists wanting to create dramatic classic sets, textured sets or fuller-looking results for clients with finer, shorter or weaker natural lashes.
Why Lash Artists Love Our Cashmere Flat Lashes
-
Flat, wider base creates a larger bonding area
-
Creates the appearance of a darker and fuller lash line
-
Split-tip design provides a softer, fluffier finish
-
Made from high-quality Korean PBT fibre
-
Soft, flexible and comfortable to wear
-
Ideal for clients who want more definition from a classic set
-
Suitable for classic, wispy and textured lash styling
-
100% cruelty-free
-
Designed for professional lash artists
What Are Flat Lashes?
Flat lashes are individual eyelash extension fibres with a flattened base rather than the traditional round base found on standard classic lashes.
The wider base allows the extension to sit neatly against the natural lash while creating the appearance of greater density and definition.
Because of their shape, flat lashes can give your client a bolder classic lash look without needing the visual heaviness of a thicker traditional classic extension.
Cashmere Flat Lash Benefits
Fuller, Darker Classic Lash Sets
The flat shape creates greater visual width, helping produce a darker lash line and fuller-looking set while still using one extension per natural lash.
This makes them an ideal choice for clients who love the definition of classic extensions but want a little more drama.
Lightweight & Comfortable
Our 0.15 and 0.20 Cashmere Flat Lashes are designed to feel lightweight and comfortable while providing a bold finished result.
They are particularly useful when styling clients with finer natural lashes where you want to create the appearance of density without simply choosing a much thicker classic extension.
Wider Base for Easy Attachment
The flatter base provides a larger contact area between the extension and the natural lash, making placement easier and helping create a secure attachment when correct lash application and adhesive techniques are used.
Split Tips for a Soft Finish
Each flat lash features split tips that give the finished set a softer, fluffier appearance compared with the sharper finish traditionally associated with classic lash extensions.
Perfect for Classic, Wispy & Kim K Lash Sets
Want to create a textured Kim K or wispy lash set?
Combine our Classic Cashmere Flat Lashes with Lashes by RK Promade Fans.
Try applying Cashmere Flat Lashes to approximately 50% of the natural lashes, then use Volume Promade Fans throughout the remaining lashes.
For added texture and dimension, vary your lengths strategically according to your client's natural lashes, eye shape and desired styling.
This combination creates a beautiful mix of definition and softness for a textured, strip-lash-inspired finish.
How to Apply Cashmere Flat Lashes
These lashes are designed for single classic lash application.
For best attachment:
-
Isolate one healthy natural lash.
-
Pick up one Cashmere Flat Lash.
-
Dip the base into your lash adhesive according to your adhesive manufacturer's directions.
-
Attach the extension from the top or bottom of the natural lash so the flat base sits flush.
-
Avoid attaching the lash from the side, as this reduces the available contact area.
-
Always select an appropriate extension length and weight based on the health of your client's natural lashes.
Product Details
Type: Classic Flat Eyelash Extensions
Diameter: 0.15 or 0.20
Material: Premium Korean PBT
Tip: Split tip
Application: One extension per natural lash
Finish: Soft, fluffy and defined
Suitable for: Classic, wet-look-inspired and textured lash sets
Professional use: Yes
Cruelty-free: Yes
Who Are Cashmere Flat Lashes Best For?
Cashmere Flat Lashes are ideal for clients who:
-
Prefer classic eyelash extensions
-
Want a darker and more defined lash line
-
Love a fuller classic look without moving into a full volume set
-
Have naturally fine or shorter lashes and require careful weight selection
-
Want a soft, fluffy finish rather than a traditional sharp classic look
-
Love wispy or textured lash styling
Always assess the condition of the client's natural lashes before selecting extension length, diameter and styling.
Classic Flat Lashes vs Traditional Classic Lashes
Traditional classic lashes generally have a round base, while flat lashes have a wider, flattened base.
This changes both the appearance and attachment of the extension.
Traditional Classic Lashes
-
Round base
-
Clean and defined finish
-
Traditional classic appearance
Cashmere Flat Lashes
-
Flattened, wider base
-
Darker-looking lash line
-
Soft split-tip finish
-
Fuller appearance
-
Excellent for creating more definition while maintaining a classic 1:1 application technique
Frequently Asked Questions
What are cashmere flat lashes?
Cashmere flat lashes are lightweight individual eyelash extensions with a flattened base and soft split tips. They are applied using the traditional one-extension-to-one-natural-lash classic technique but create a fuller and darker appearance than many traditional round classic lashes.
Are flat lashes used for classic lash extensions?
Yes. Flat lashes are designed for classic 1:1 lash application, meaning one extension is attached to one suitable natural lash.
What is the difference between flat lashes and classic lashes?
The main difference is the shape of the extension. Traditional classic lashes usually have a round base, whereas flat lashes have a flattened, wider base. This creates greater visual width and can make a classic lash set appear darker and fuller.
Are Cashmere Flat Lashes suitable for weak natural lashes?
Their lightweight design can make them a useful option when working with finer natural lashes; however, lash artists should always assess each client's natural lash health and choose appropriate extension length and weight accordingly.
Do flat lashes have better retention?
The wider base provides a larger potential bonding surface when properly attached to the natural lash. Actual retention will also depend on application technique, adhesive choice, humidity, temperature, client aftercare and the natural lash growth cycle.
How should flat lashes be applied?
Flat lashes should be placed so the wider surface sits flush against the natural lash. Top or bottom attachment generally maximises the available bonding surface. Avoid attaching the narrow side of the flat lash to the natural lash.
Can I use Cashmere Flat Lashes for a Kim K set?
Yes. Flat lashes work beautifully in textured and wispy sets. They can be combined with Promade Fans to create definition through the base of the set while volume fans add softness and dimension.
What are Cashmere Flat Lashes made from?
Lashes by RK Cashmere Flat Lashes are made from high-quality Korean PBT fibre and are designed to provide a soft, lightweight feel for professional eyelash extension application.
Create Fuller Classic Lash Sets
Give your clients the definition of classic lashes with the soft, fuller appearance of flat lash technology.
Shop Lashes by RK Classic Cashmere Flat Lashes and create lightweight, dark and beautifully defined classic lash sets your clients will keep coming back for.
The more you spend across your cart, the more you save. Tier discounts are applied automatically at checkout — no code needed, and they stack with any bundle discount.
- Spend $200+−5%
- Spend $300+−8%
- Spend $500+−10%
Discount applies to the cart subtotal and is shown at checkout.
Shipping is automatically calculated at checkout — no code required.
Australian domestic orders
- Orders over $199: Free Express Shipping
- Orders under $199: Express Shipping $14.95
- Free shipping does not apply during sale periods
International orders
- Shipping rates vary by country — calculated at checkout
- Delivery up to 15 business days (varies by destination)
Estimate delivery times via Australia Post using postcode 3026 as the origin.
Read full shipping policyWe have a 30-day return policy — you have 30 days from the date of purchase to request a return.
Read full return policyNot all lash extensions are made equal
See how Lashes by RK stacks up against what's out there.
| Feature | Lashes by RKOur promise | Other lash brands | Cheap alternativesShein, AliExpress | Overseas bulkChinese manufacturers |
|---|---|---|---|---|
| Trust & social proof | ||||
| Verified customer reviewsIndependently verified platform | 6,200+ Judge.me 220 Google reviews | 50–100 Google reviews (avg) | ||
| Trays shipped | 350,000+ verified | |||
| Australian-owned & operated | Some | |||
| Product quality | ||||
| Retention | 5–7 weeks | 3–4 weeks | 1–2 weeks | 1 week |
| Korean PBT materialHighest quality on market | Varies | |||
| Finish & feel | Soft, matte, dark finish | Plasticky, shiny look | ||
| Value & buying experience | ||||
| Bulk discount tiers | Up to 25% | Limited | On volume | |
| Free samples available | ||||
| Dispatch speed | Same-day local dispatch | 2–5 days | 2–6 weeks | 4–8 weeks |
| Afterpay / Zip on bulk orders | ||||
| 30-day easy returns | ||||
| Dedicated customer supportReal humans, fast response | Sometimes | |||




