Whether you’re an all-weather runner, climber or hiker, these thin and lightweight SealSkinz 100% Waterproof Thin Mid Length Socks are designed for any activity where you want water protection, but minimal insulation and maximum breathability. SealSkinz socks are made in the UK using their Aqua Dynamic Design principles, with a high performance hydrophilic membrane outer and a merino wool lining providing dryness with moisture control and comfort.Patented Stretchdry technology ensures a close, comfortable fit, with hand linked toes for smooth seams, and elastication at the cuffs, ankles and insteps for added support.(08/15)