COMBAT TESTED. Design of these socks repeatedly proved its effectiveness in field combat conditions. Made in Ukraine. 281Z. This socks are created by specialists of 281Z Development Group. All materials which are used in the production of socks are NIR Compliant. SIZECHART. US shoe size: XS - (men's 3.5-7 / women's 4.5-8); S - (men's 6.5-10 / women's 7.5-11); M - (men's 9.5-13 / women's 10.5-14); L - (men's 12.5-15 / women's 13.5-16). ATTENTION: Our socks are made by the Ukrainian Army size chart, so they are full size. Please pay attention to the size chart in the photos or in description to pick the right size sock!. FINEST YARN. Made from finest combed cotton. Combed cotton means that shorter fibres from the yarn are separated and remowed, making it stronger and softer to the the skin. VERSATILITY. Socks are designed for long-term use with tactical, military, police, training, working footwear. Socks are ideal for use in active sports, running, athletics, soccer, cycling, backpacking, climbing etc. ECO-FRIENDLY. Materials meet the "STANDARD 100 by OEKO-TEX". Absence of banned colourants, formaldehyde, pentachlorophenol, cadmium, nickel, and other harmful components. EASY-CARE. Machine wash, permanent press: initial water temperature should not exceed 30C/80F. Special instructions: Drip dry. DO NOT: Bleach, Iron, Dry clean. ODOR CONTROL. Structure and composition of the socks' material help to avoid an unpleasant odor even with prolonged wearing. The socks' fiber composition and specially designed airflow channels maintain high level of breathability and thermoregulation, so your feet won't sweat, and if they do - the moisture will be quickly absorbed and removed and the odor will be ventilated from the foot. COMFORTABLE FIT. Bands on the foot and cuff provide tight fit and prevent sock from slipping and also provide slight compression effect to enchance bloodflow during long-term movement. Cushioning softens the stepping, improves airflow and prevents sweating of the foot, which provide maximum wearing comfort of 281Z socks. NATURAL. 70% Organic Cotton, 25% Nylon, 5% Elastane with toe and heel reinforced by highly durable polyamide thread.Best Sellers Rank: See Top 100 in Clothing, Shoes & Jewelry. : B08XXYKXL8. Manufacturer: 281Z. Date First Available: March 3, 2021. Department: Boys. Item model number: 281Z-UA-RWS-CB.