Outdoor Socks UYN Man Biotrek Heavy Duty Socks Black/Multicolor

Maximum protection, maximum comfort, all in one sock. UYN BIOTREK HEAVY DUTY are the socks that combine high performance with a unique feeling of well-being thanks to the use of innovative bio-materials. The properties of fine Merino wool are enhanced by the Kapok plant fibre, the lightest in nature, to ensure perfect thermoregulation even on the coldest days. The Natex fibre from castor beans neutralises odours and helps to keep feet dry on high altitude hikes.

The sustainable alternative to elastane: FLEXICORN is a plant-based bio-polyester. Extraordinarily elastic and resilient, it keeps its original shape longer, it is wrinkle resistant and UV-resistant. FLEXICORN has made it possible for us to replace synthetic elastane fibres with a recyclable, more sustainable and less polluting material. This innovative yarn is derived from corn which isn’t used for human consumption and glucose fermentation. With FLEXICORN we have reduced energy consumption, CO2 emissions and the impact of our products on the environment. FROM VEGETABLE INGREDIENTS FLEXICORN's polymer is produced using corn seeds, vegetable ingredients from renewable sources HIGHLY ELASTIC Due to the micro-zig-zag structure, it always bounces back to its original shape QUICK-DRYING The FLEXICORN fibre is breathable and increases the drying speed of the garment.

Kapok (The vegetable wool): Nature never fails to amaze us. Nature gives us KAPOK, a precious and totally organic fibre obtained from the fruit of the Ceiba Pentandra, a sacred plant that grows up to 60 metres high, widespread in the rainforests of South America. Known as 'vegetable wool' for its extraordinary lightness, KAPOK fibre has only recently been used in the textile industry for padding cushions and mattresses. We at UYN were the first to succeed in using the natural yarn in sportswear - as a fabric with exceptional active properties and not as padding. THE WORLD' S LIGHTEST NATURAL FIBRE KAPOK is a hollow fibre composed of 80% air, with a very low density (0.35 g/cm3). Because of this, Kapok is the lightest natural fibre in the world. NATURALLY INSULATING The structure allows the KAPOK fibre to trap a large amount of body-warmed air thus creating an insulating barrier that protects against temperature changes. SOFT AND HYPOALLERGENIC High-quality and soft, it dries quickly, is hygroscopic and has natural antibacterial and hypoallergenic properties. TOTALLY ORGANIC KAPOK fibre grows wild in pristine forests, no intensive cultivation is required and the fiber is harvested by hand. No fertilizers or pesticides are used in its cultivation.

Zerofuff: Unlike classic socks that use a double cuff construction to stay firmly on the calf, the revolutionary ZEROCUFF technology uses a special construction that allows the sock to have a perfect hold without tightening the leg. The elimination of any restriction on the calf improves circulation increasing performance. At the same time, the increased blood flow helps maintaining a constant temperature to the feet and preventing swelling even after long sessions of intense training.

Anti Impactor: Frontal shock-absorbent 3D knitted structure that simultaneously guarantees efficient foot ventilation.

Target Compression Bandage: Double asymmetric bandage with perspiration integrated. For localized compression exactly where needed.

Cool Air Flow: 3D micro-channel structure for air circulation; keeps feet dry and at a comfortable temperature.

Preshock Shield: Absorbs shocks and protects the sensitive Achilles tendon with a 3D knitted structure.

NATEX: NATEX is especially light and reduces the weight by 25%. NATEX garments dry up to 50% faster than comparable nylon clothing. The 100% organic fiber is more elastic and the bacteriostatic effect minimizes odors.