Keep it long, treasure it long.

Gentle Protection for Summer Skin

A part of your body that's always in motion and often exposed to UV rays and dryness—your arms. Without realizing it, they bear more burden than you think. That’s why we created the Silk UV-Cut Arm Covers, a thoughtful touch of comfort and protection for your skin.

With the signature softness of silk and an airy lightness, these arm covers gently embrace your skin the moment you put them on. From elbow to wrist, they offer a sensation as soothing as a deep breath.

Simply slip them on during outings on sunny days. Not only do they shield your skin from harsh UV rays, but they also help guard against dryness and chill from air conditioning. Thanks to silk’s natural UV-blocking properties, you can stay comfortably protected throughout the summer season.

Unparalleled Softness Born of Masterful Craft

The fabric used is so exceptionally soft that it is even provided to some of the world’s most prestigious maisons. Hasegawa Shoten’s proprietary silk yarns harness four natural qualities, maintaining the noble essence of silk while delivering supreme comfort.

A natural material with excellent moisture control and deodorizing properties
The exceptional moisture-absorbing and releasing abilities of natural silk keep skin comfortable and protected from dryness.

Incredibly fine fibers—half the thickness of cashmere—for exquisite texture
Silk fibers, astonishingly thin at half the thickness of cashmere, gently wrap even the most sensitive skin.

Practical and washable by hand at home
These arm covers offer both luxury and everyday practicality with easy hand-washing at home.

Protects against static electricity and dryness

So Soft, It's Almost Ticklish

These arm covers are made with 100% of KOHARU’s signature fluffy silk yarn. With its natural moisturizing, breathability, and UV-blocking properties, silk gently embraces your arms, protecting them from dryness and UV rays alike.

Crafted using seamless knitting technology, there are no seams to cause bulk or tightness around your elbows or wrists, ensuring minimal irritation and an exceptionally gentle fit. The soft silk wraps around your entire arm, sealing in moisture while keeping you cool and comfortable.

The refined, simple design suits all ages and genders, and their lightweight, compact size makes them ideal for carrying on the go. A perfect addition to your daily sun care routine—and a thoughtful gift for someone you care about.

Crafted with Heart and Heritage

Founded in 1966, Hasegawa Shoten has spent over half a century perfecting the art of working with natural fibers. Based in Ichinomiya, Aichi Prefecture, the company has long sourced fine raw materials directly from around the world to produce the highest quality yarns and fabrics.

Originally a supplier of silk yarns for traditional Japanese garments, Hasegawa Shoten later expanded into Western textiles—earning the trust of luxury fashion houses like Chanel and Hermès. Since 2007, they’ve built a fully integrated production system, including their own silk yarns and the latest knitting and twisting machines, to ensure quality from thread to finished product.

This commitment to craftsmanship and timeless quality is what gives rise to enduring pieces—like their beloved silk turtlenecks—designed to bring a gentle, nostalgic warmth to your everyday life.