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.
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
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.
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.
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.
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.
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.
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.
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.
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
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.
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
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.
Yes. Flat lashes are designed for classic 1:1 lash application, meaning one extension is attached to one suitable natural lash.
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.
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.
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.
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.
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.
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.
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.
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