Monkey inspired socks for every occasion. These are not your crafting socks! They re made from soft sustainable Merino wool and offer great fit and comfort-enhancing features. URfitâ„¢ System provides spandex support and memory-knit construction. Smooth flat knit construction & toes seams provide ultra-lightweight comfort. 48% nylon 33% Merino wool 15% acrylic 2% polyester 2% spandex. Lightweight.