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Meet the Beneunder Half-Zip Fleece Base Layer — engineered for versatile warmth, stretch, and everyday comfort. Available in two warmth levels, it adapts to different climates and layering needs. Crafted with double-brushed fleece, it provides a soft, breathable feel while boosting insulation and heat retention. With 360° stretch and moisture-wicking fibers, it moves with your body and keeps you fresh on the trail or in town. Lightweight and slim-fit, it’s perfect as a standalone top or a layering essential.
- Mid Warmth (5°C–15°C): Retains heat by 37.8%, with a +2.1°C warmth boost. Weighs ~225g, slim and lightweight for mild-cold weather.
- High Warmth (-5°C–5°C): Retains heat by 44.1%, with a +3.9°C warmth boost. Weighs ~250g, denser fleece for colder conditions.
Highlights:
- Double-brushed fleece traps heat for a +2.1°C to +3.9°C warmth boost
- Hollow-core fibers enhance insulation: 37.8% (Mid Warmth) | 44.1% (High Warmth)
- 360° stretch with 244% expansion — unrestricted movement
- Moisture-wicking fibers absorb instantly (521% absorption, 279.6mm/s breathability)
- Lightweight & slim fit: ~225g Mid Warmth / ~250g High Warmth
36% Viscose, 28% Acrylic, 28% Cotton, 8% Spandex – soft and cozy with a fleece-like texture, combining natural comfort, lightweight warmth, and flexible stretch for a flattering fit.
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• 30-day Return: Feel free to send your item back within 30 days of receiving the product.
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Based on moderate activity with a basic inner layer; increase warmth for wind or humidity.
Recommended range: 5–15°C / 41–59°F
Double-Brushed Fleece — Lightweight Heat Lock
Double-brushed fleece and hollow-core fibers work together to boost warmth by +2.1°C and improve heat retention by 37.8%. Soft yet effective, it delivers lasting insulation without extra weight.
360° Stretch — Move Without Limits
With 244% stretch and 94.5% recovery, the fabric adapts seamlessly to every move—whether stretching, bending, or lifting—ensuring total freedom without tightness.
Quick-Dry Wicking — Stay Fresh Outdoors
High-performance fibers wick moisture instantly with 521% absorption and 279.6mm/s breathability. Sweat dries fast, keeping you dry and comfortable in active conditions.
Ultra-Light 225g — Wear Alone or Layered
Weighing only ~225g, it’s light enough for easy layering yet sleek enough to wear solo. Slim-fit warmth without the bulk.
Seamless Soft Finish — Gentle on Skin
Seamless flatlock stitching and soft zipper edges ensure irritation-free comfort, even during long hours of wear.