An ultra-light hiking sock, ideal for hot weather use in mids or shoes when you need maximum breathability. Micro padding protects the heels, toes and ball of foot, while large panels of unpadded mesh give maximum cooling. Merino blend material gives excellent temperature regulation and moisture management. Features include: Crew (above ankle) length. 56% merino wool, 41% nylon and 3% Lycra. Zonal padding. Flat toe seam. Elastic arch support for improved fit. 3D shaped heel cup. Thermo Fit process ensures the sock returns to it's original shape and size after every wash. NB: Switching to an ultralight sock from a standard weight hiking sock will make your footwear fit more loosely, and can consequently cause issues with foot movement and blistering.