You've made the mistake before where you chalk up before you even tie in, but with your new Black Diamond Gym Chalk Back, you're trying to dial back a bit so your cool can match your gear. With ample space and an integrated refillable chalk ball, the Gym Chalk Bag holds your precious white stuff while you tick off routes during you gym session. A wide top design makes it easy to fit your mitts inside to cover them with chalk before you go for that next move. This bag has a built-in brush holder so you can clean holds mid-route and a specific slot to hold your lead certification tag without it getting in your way while you climb.