We combined Targeted Compression and anatomical design with a distinct blend of Merino wool and Tencel® fibers to create a more advanced Merino sock. • 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.) • 3" quarter length offers the perfect amount of ankle protection from rocks, dirt and mud.