Targeted Compression and anatomical design for custom-like fit with protection from blisters; iWick fibers wick moisture to keep feet cool and dry; Mesh ventilation for more breathability to keep your feet dry in various conditions; Higher heel tab protects the heel in higher athletic shoes while still staying hidden; Heel Hugger 2.0 silicone tape to help the sock stay up; The Perfect Toe® (No irritating toe seam; Imported