When hitting the slopes, staying warm, dry, and comfortable isn’t just a luxury—it’s a necessity for peak performance and enjoyment. Introducing the ANNIOU Ski Thermal Compression Underwear Set: a meticulously engineered base layer designed to revolutionize your winter sports experience, whether you’re carving fresh powder as a seasoned skier or testing your limits as a snowboarding novice. Crafted to tackle the harshest alpine conditions, this set merges cutting-edge fabric technology, ergonomic design, and functional innovation to create a base layer that works with your body, not against it. Unlike bulky, restrictive traditional thermal wear that traps sweat and limits movement, this compression set delivers targeted warmth, breathability, and support, ensuring you stay focused on the mountain—not on adjusting your gear. Perfect for skiing, snowboarding, cross-country trekking, or any cold-weather outdoor activity, it’s the foundational piece every winter sports enthusiast needs in their kit. What’s more, its versatility extends beyond the slopes: it’s equally ideal for hiking, camping, cycling, or even daily commutes in frigid climates, making it a year-round essential for outdoor lovers.
Fabric and Design
At the core of this exceptional base layer is a high-performance fabric blend optimized for cold, active environments: 84% nylon, 11% spandex (lycra), and 5% polyester, enhanced with genuine wool (dubbed the “soft gold” of thermal fabrics) for superior insulation. The nylon provides durable, lightweight structure, while the spandex delivers exceptional stretch—ensuring a snug, adaptive fit that moves with your body without sagging or binding. The addition of genuine wool leverages the fiber’s natural hollow-core structure, which traps body heat to create a personal “warmth bubble” while remaining breathable, avoiding the stuffy feel of synthetic-only layers. This “temperature-regulating wool” also minimizes excessive sweating, keeping you balanced between warmth and dryness.
A human bionics-inspired cut that integrates 3D grooved fabric in high-sweat zones (underarms, back, inner thighs) to concentrate and expel moisture quickly, preventing post-exercise chills. Strategic muscle-support panels (in the thighs, arms, and torso) reduce fatigue by stabilizing form during dynamic movements (like pole planting or edge turns), while seamless knitting technology eliminates 80% of traditional stitching—drastically reducing chafing and irritation even during long days on the mountain. For added protection against the elements, the outer layer features a water-repellent, wind-resistant finish: this shields you from light snowfall and gusty winds, while the fabric’s moisture-wicking core ensures sweat is pulled away from the skin, rather than absorbed and chilled. The result is a base layer that feels like a second skin—soft, supportive, and perfectly attuned to the demands of alpine activity.
A classic crew neck blocks cold air from entering the neck; elastic cuffs and waistbands stay securely in place without slipping; and subtle knit color-blocking adds a dynamic, sporty aesthetic. The set even includes reflective logos for enhanced visibility during night skiing or low-light conditions, prioritizing both performance and safety.
Key Features:
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Full-Body Warmth Retention: The wool-blend fabric and 3D structure lock in body heat to create a consistent “warmth zone.”
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Heat Reflection Technology: A lightweight thermal layer reflects body heat back to the skin, boosting warmth without adding bulk.
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Temperature-Regulating Wool: The natural fiber balances insulation and breathability, reducing overheating during intense activity.
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Weather-Resistant Fabric: Water-repellent and windproof outer layers shield against snow, sleet, and gusts, keeping you dry and cozy.
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Antibacterial & Odor Control: The fabric is infused with triple-action antibacterial technology that inhibits the growth of bacteria, viruses, and fungi. This not only keeps the garment fresher for longer (critical for multi-day trips) but also eliminates the awkward, persistent sweat odors that plague most base layers—so you can focus on your run, not worrying about post-ski freshness.
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Lightweight & Durability: Weighing 36% lighter than traditional thermal sets, this compression layer adds warmth without adding bulk—so you can layer it under ski jackets and pants without feeling restricted. The stretch fabric maintains full range of motion, whether you’re reaching for a grab or bending to adjust your bindings, while the abrasion-resistant outer layer stands up to repeated contact with gear (like ski boots or harnesses) and harsh snow conditions. The set’s proprietary dynamic circulation system also makes it 30% fluffier and 13% softer than standard thermal wear, balancing comfort and longevity.
While engineered for skiing, the set’s performance features make it ideal for a wide range of cold-weather activities: winter hiking, ice climbing, cycling, or even casual travel. It adapts seamlessly to different intensity levels, ensuring comfort whether you’re tackling a backcountry trail or exploring a snowy city.
In short, the ANNIOU Ski Thermal Compression Underwear Set isn’t just a base layer—it’s a performance tool that lets you ski harder, longer, and more comfortably, no matter what the mountain throws your way.
Size Information:

Note:
1.Please allow ±1-3cm differs due to manual measurement. When purchasing, please refer to the above size chart to choose the most suitable size.
2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.