Overview:

Engineered for cold-weather performance, this unisex seamless thermal underwear set combines intelligent body-mapped knitting with lightweight thermal insulation. The standout feature is the strategic zoned knit construction — targeted jacquard panels are knitted directly into the fabric around the chest, core, thighs, and knees to provide enhanced muscle support, targeted breathability, and optimal joint flexibility. The ergonomic back design mirrors the spine's natural curvature for gentle core support, while the high-rise ribbed waistband on the leggings provides secure tummy control. For brands targeting the skiing, running, winter training, or outdoor performance market, this product provides a technically superior, fully customizable OEM/ODM foundation.

Key Features:

Advanced Zoned Seamless Knit Technology

The defining feature of this base layer is its intelligent, body-mapped construction. Sophisticated seamless circular knitting creates targeted jacquard knit zones — the distinct textured areas across the chest, core, thighs, and knees. These zones offer customized support, enhanced breathability, and unrestricted flexibility exactly where the body needs it most. Jacquard pattern, zone placement, and knit density are fully customizable.

Thermal Insulation & Moisture Management

Designed as a high-performance thermal buffer, the dense seamless knit traps body heat to keep the wearer warm in freezing conditions. Advanced moisture-wicking fibers actively pull sweat away from the skin to the outer surface where it evaporates quickly — preventing the chilling "wet layer" effect and keeping the wearer dry and comfortable during high-exertion activities.

Zero-Chafe Unisex Seamless Fit

Crafted with completely seam-free construction, this set eliminates bulky side seams and shoulder seams for a smooth, second-skin fit that moves fluidly with the body. The unisex design, combined with inherent 4-way stretch, adapts perfectly to different body shapes while preventing friction and irritation.

Ergonomic Back & Waist Support Construction

The back of the top features a distinctive Y-shaped and diamond-shaped knit structure that mirrors the natural curvature of the spine, providing gentle core support and preventing the shirt from riding up during dynamic movements. The leggings feature a wide, high-rise ribbed waistband that offers secure tummy control and a non-roll fit.

Lightweight Warmth Without Bulk

The lightweight thermal blend provides superior warmth without adding unnecessary bulk, making it the perfect layering foundation under ski suits, workwear, or winter uniforms. The streamlined silhouette fits comfortably under outer layers without bunching or restricting movement.

Four-Way Stretch & Shape Retention

The fabric stretches and recovers in all four directions, providing unrestricted multidirectional movement. It molds to the body without bagging, sagging, or losing shape — even after 50+ washes.

Anti-Odor & Quick-Dry

Silver-ion or zinc-based anti-odor treatments are embedded directly into the yarn, surviving 50+ industrial wash cycles for long-lasting freshness. Quick-dry properties ensure the set is ready to wear again quickly after washing.

Certified Skin-Safe & Durable

All fabrics are OEKO-TEX® Standard 100 certified and free from harmful substances. Every batch is tested for compression consistency, pilling, shrinkage, colorfastness, and thermal performance to 50+ wash cycles. Optional UPF 50+ and anti-static finishes are available.

Fully Customizable for Your Brand:

As your OEM/ODM partner, we provide full-spectrum customization to make this thermal set uniquely yours:

Sizing & Fit: Unisex XS–3XL, men's S–5XL, or women's XS–2XL; custom size charts with athletic, relaxed, or compression fits.

Zoned Jacquard Knit: Custom jacquard patterns (geometric, diamond, linear, or branded), zone placement (chest, core, thighs, knees, or all-over), and knit density fully customizable.

Thermal Weight: Lightweight (150–200 gsm), midweight (200–250 gsm), or expedition-weight (250–300+ gsm).

Top Configuration: Crew neck, zip neck, mock neck, or V-neck; thumbhole cuffs (optional) or bonded raw-cut cuffs.

Legging Configuration: Full-length, ¾ length, or thermal shorts; high-rise ribbed waistband, elastic-free, internal drawcord, ankle zips, or silicone leg grips.

Fabric Selection: Brushed fleece, thermal interlock, merino-blend, polypropylene, hollow-core polyester, bamboo-charcoal, or moisture-wicking nylon.

Colors & Prints: Pantone-matched solids, heathered melange, two-tone zoned panels, or custom sublimation prints.

Functional Finishes: Anti-odor (silver-ion, zinc), UPF 50+, DWR, anti-static, anti-pill, flame-resistant (on request).

Branding & Packaging: Woven labels, heat-transfer logos, reflective branding, custom hangtags, individual poly-bags, expedition-grade packaging.

Target Audience & Applications:

Skiing, snowboarding, and winter sports

Winter running, cycling, and outdoor training

Hiking, mountaineering, and ice climbing

Cold-weather work: construction, utilities, warehousing

Unisex outdoor, snow sports, and cold-weather performance brands