Run Happy in Brooks signature Fanatic calf sleeves. Made from patented DriLayer Crush fabric, they provide ideal compression for training, racing, or post-workout recovery. Just enough compression to support muscles and enhance circulation so you'll Run Happy. 

• DriLayer Crush Nylon provides a durable sock that will maintain its integrity wearing after wearing.
• 12-18 mmHg Compression
• Mesh panel in upper calf provides ventilation.
• Run Happy message on the back of the sock.

Brooks Fanatic Calf Sleeve Specs

Sock Fibers:

97% - DriLayer Crush Nylon
3% - Spandex