Sealskinz Mens / Womens Bircham Socks Waterproof Hiking Walking Ankle Length S-XL Size:S - UK 3-5 100% recycled polyester double-knit

100% recycled polyester double-knit

Boa® fit system: Quick and easy adjustment

Lock-down upper construction

TPU outsole is lightweight and made for sharp changes of direction

Slip-resistant rubber traction outsole

Sealskinz Mens / Womens Bircham Socks Waterproof Hiking Walking Ankle Length S-XL Size:S - UK 3-5 100% recycled polyester double-knitDescription The original, military endorsed Bircham Sock. Ankle length. 100% waterproof and thermoregulating, the Bircham excels in high intensity sports, as well as more relaxed outdoor pursuits. Handcrafted in the Sealskinz factory in Norfolk. Colour: Grey Grey Marl Technology Outer Extra durable polycolon and nylon blend, with 4 way stretch for an optimal fit. Mid Section Aquasealz waterproof membrane releases moisture vapour from inside the sock.