extend grip crew compression socks on the claim black limeTritanium eXtend GRIP crew Compression Socks Take your training experience to the next level! Tritanium eXtend GRIP Crew compression socks were designed using cutting edge technology. Their silicone cell based grip sole structure provides a superb feel while wearing training shoes, ski boots or ice skates. Thanks to the grip soles, your feet will be locked in place inside the shoes, thus preventing blisters and chafing. The silicone cell structure