Merino 10 insulates when wet - keeping your feet warm in wet, cool conditions; Targeted Compression and anatomical design provide an unmatched Custom-Like Fit; Anatomical design enhances fit, delivering maximum comfort and protection by eliminating blisters; High density cushioning provides extra protection in high impact areas; The Perfect Toe. (No irritating toe seam.) Plus, newly redesigned with a reinforced toe and heel; Made in the USA; 44% Nylon; 27% Wool; 27% Tencel; 2% Spandex; Machine wash cold. Tumble dry. No bleach or fabric softeners. For best results, wash socks inside out