Hyperwear Hyper Vest PRO Unisex 10-Pound Adjustable Weighted Vest for Fitness Workouts Professional-grade weight vest based on a patented design and fabric Comes with 10lbs of high-density steel weights with capacity for more Thin profile provides full range of motion Stretch fabric is wicking, odor resistant, cool and comfortable; open side for ventilation Unisex design with side lacing for highly-adjustable fit