This'll make all the difference during hot days and hard workouts. Wet down and wring out the REI Co-op Cooling Towel to experience cool relief while you run or hike—or just live in a hot climate.

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The sand-filled, grippy TRX Slam Ball makes an impact. Simply lift overhead and slam to the ground to work every muscle in your body. Or slam it sideways into a wall to amp up that rotational fire.

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Put your abs, glutes, arms, shoulders or legs to work with the Pro-Athletics slider discs—a convenient cross-training tool for cardio and full-body workouts at home.

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