[Next-Generation Thermal Underwear Set] Cashmere & Silk Seamless N6301

A “moving” experience for your winter skin—one you’ve never felt before. This isn’t just cold-weather clothing. It’s a new choice in “skinwear” designed to gently care for your bare skin.

The cold of midwinter and the stress on your skin caused by dryness. The “WarmTouch+” set was created to free you from all of that. It offers overwhelming performance and aesthetics that set it apart from conventional thermal underwear.

[The Luxury of Wearing a Gem of a Fabric Directly Against Your Skin] Its most distinctive feature is the material—a luxurious blend of “cashmere,” the jewel of fibers, and “silk,” which contains proteins similar to those found in human skin. It offers a moisturizing softness and a meltingly smooth feel against the skin—something you’ll never experience with innerwear made solely from synthetic fibers.The rich warmth of cashmere and the gentle moisture-wicking properties of silk envelop skin—which tends to dry out in winter—in a veil of hydration. By reducing static electricity and eliminating that itchy, prickly sensation, it provides a stress-free wearing experience so immersive that once you slip it on, you’ll never want to go back.

[310g Thickness and Air-Like Lightness] The fabric has a heavyweight thickness of “310g/m².” Yet, it feels surprisingly light when worn. The secret lies in the cutting-edge “Hollow Lock Heat” structure. By creating hollow spaces within the fibers—much like macaroni—it traps a layer of warm air, locking in body heat just like a thermos. It blocks outside air while preventing internal heat from escaping. This “air insulation layer” is precisely why it delivers overwhelming warmth without feeling heavy.

[Completely Seamless, Without Compromising Beauty] While highly functional, its appearance is extremely minimalist. The “seamless” design—which minimizes seams to the absolute limit—combined with raw-edge finishing, ensures a flat, smooth feel against the skin.Even when worn under tight shirts or knitwear, it doesn’t show through, blending seamlessly with your body like a “second skin.” Another appealing feature is its high-quality knit-like appearance—it doesn’t look like underwear, even when visible at the collar.

From relaxing at home to business settings in the bitter cold. Experience both “warmth” and “beautiful skin” at the same time. This is the ultimate innerwear set, crafted for the discerning adult who appreciates the essence of style.

◎Model information

Male model: 180 cm, 65 kg, wearing size XL

RESTICK 

Material: 49.1% Acrylic, 31.1% Viscose (Rayon), 14.2% Polyurethane (Spandex), 2.9% Cashmere, 2.7% Silk

Target Audience: Men & Women

Season: Spring, Fall, Winter

Release: December 11, 2025

Size Chart(Unit: cm/Japan Size)

◎Sizes are measured with the garment laid flat. There may be slight variations (1–3 cm) depending on the product and the person wearing it. Units in the size chart are in cm.

◎Due to lighting conditions, the actual product may look slightly different from the photos. Please keep this in mind when placing your order.

Recommended Sizes (Men’s ▼)

Recommended Sizes (Women’s ▼)