This is a Protection Level 3 crew sock designed to help protect your feet from the damaging effects of impact, shear and blistering common to playing tennis. This product provides the most protection available (beyond what any other sock can provide today) and may require a 1/2 size larger shoe. Wear this product when fitted with new shoes. 

MEDIUM FITS SHOE SIZE: Mens US 5.5-8.5, Womens US 6.5-10.0

LARGE FITS SHOE SIZE: Mens US 9.0-12.5, Womens US 10.5-13.0

• Length: Crew
• Cushion: Lite Cushion
• Fiber Contents: 2% Elastic , 76% THOR•WICK® COOL , 22% Nylon
• Care instructions: For longer product life, maximum protection and comfort, wash and dry inside out (to fluff up the pads) using liquid fabric softener after each use (to lubricate the fibers for longer life). For optimal benefits, liquid fabric softeners are always recommended. Do Not Bleach. Wash Normal: 105F/40C. Dry Normal Medium. Do Not Dry Clean. Do Not Iron.