Terry cushioned in the footbed, heel and ankle, wind proof and waterproof, Bridgedale 100% Waterproof Midweight Ankle StormSocks fit low just above the ankle bone to maximise freedom for outdoor activities, aided by the careful balance of warmth and breathability inherent in the sock design. The first, and closest to the skin of a three layer composition is antibacterial, moisture wicking merino wool rich knit, to keep your feet warm, dry and comfortable. The tough nylon outer layer is protective, defending a special in-between layer of stretch PU Hydrotech waterproof breathable membrane from damaging abrasion from your boots. Shot through with Lycra these Bridgedale socks have a performance fit that. When teamed with a flat toe seam and elastic arch support keeps the socks in place and doesn't cause any rubbing or hotspots. Due to the shortened length, Bridgedale recommend that water ingress can be hard to fully prevent, and suggest their boot or knee length styles, available from us, to wear during heavy rainfalls. WATERPROOF AND BREATHABLE: Membrane Breathability: Moisture permeability >15,000g/sqm/24h; Membrane Waterproofness: Hydrostatic head >10,000mm WINDPROOF: Prevents wind chill, the lowering of body temperature due to the passing flow of cool air across the skin, exacerbated when skin is wet PERFORMANCE FIT: Every course has LYCRA running through them giving StormSock stretch, making them easy to pull on and off and they won't fall down, giving you a snug and comfortable fit PERFECT FOR OUTDOOR ACTIVITIES: StormSock is ideal for any adventurer whether you are walking, hiking, hunting, running or biking and wanting to give your feet some well needed protection from the wind, the cold and the wet PRIMARILY KNIT FROM MERINO WOOL: features anti-bacterial, anti-odor and moisture management properties, will keep your feet warm, dry and comfortable