Add an extra layer of protection this Winter with the new GRUBS sock! This intelligently designed sock is made specially for Grubs Boots and will keep your feet even more protected this winter.  Stay-Dri - keep wearers feet warm by moving perspiration away from the foot Cushioned footbed for additional support Elastic grip section for fit and support Reinforced wool blend One pair supplied One size fits shoe sizes 4-7 and the other sizes 8-12 * Please note; GRUBS boots are produced in standard U.K. sizes for men and women (unisex sizing) and available in whole sizes only, but will stretch to fit half sizes. There is a 15mm toe allowance built into the sizing to allow for wear of wellie socks etc.