Engineered with anatomical design and Targeted Compression, providing a Custom-Like Fit and reduced risk of blisters, plus Light cushioning for added impact protection. Product Details Targeted Compression and anatomical design provide an unmatched Custom-Like Fit. High density cushioning provides cushioned comfort without the bulk. Anatomical design enhances fit, delivering maximum comfort and protection by eliminating blisters. The Perfect ToeA(R). (No irritating toe seam.) 5" cuff is perfect for trail running or cycling 95% Nylon 5% Spandex for High Top Stripes & Ascent 98% Nylon 2% Spandex for Crypto 97% Nylon 3% Spandex for Peak 94% Nylon 6% Spandex All Others. Machine wash cold. Tumble dry. No bleach or fabric softeners. For best results, wash socks inside out.