The Runner's Edge [Paperback] Sporting Goods easy-lock pump head clamps quickly

easy-lock pump head clamps quickly and securely then releases with one finger

Holds your spare tubes securely

double stitched for strength with extra blue bartack reinforcement stitching in key areas

Better dispensing cap

The Runner's Edge [Paperback] Sporting Goods easy-lock pump head clamps quicklyElite runners have long relied on technology to analyze performance, maximize training, and challenge the competitive boundaries of the sport. Serious runners long sought the same advantages only to be confronted with a costly and complicated process. Not any longer. Now, The Runner's Edge is yours. The Runner's Edge takes you inside tech based training, from the assortment of speed and distance devices available to the advantages of tracking and