Sealskinz Mens / Womens Bircham Socks Waterproof Hiking Walking Ankle Length S-XL Size:S - UK 3-5 and the heel cup is

and the heel cup is sculpted for better on foot comfort and less slip

Boa® fit system: Quick and easy adjustment

This sporty design features a multicolor mesh upper with haptic print overlay

Lock-down upper construction

The T-shirt with a subtle logo comes from the teamRISE collection

Sealskinz Mens / Womens Bircham Socks Waterproof Hiking Walking Ankle Length S-XL Size:S - UK 3-5 and the heel cup isDescription 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.