TRNR Gel Balls size-green-blue-tint-blue making the shoe especially abrasion-resistant

making the shoe especially abrasion-resistant and durable

Sweet Mary Jane

this shoe can be snugged tighter for sections of scrambling

therefore allowing replenishment of lost electrolytes without adding calories

Laces can be stashed on runs in the stretch lace cover to avoid trips and falls

TRNR Gel Balls size-green-blue-tint-blue making the shoe especially abrasion-resistantAre you looking for a fun and convenient way to improve your grip strength? The TRNR Gel Balls will have you covered. In a pack of three with a light, a medium, and a heavy resistance, they allow you to progress at your own pace. They are perfect for crushing, pinching, and finger extension exercises, targeting the flexor and extensor muscles of the hand and forearm. You can also use them for reflex exercises or even as stress relief balls. The gel