Hyperwear, Hyper Vest PRO Weighted Ultra Thin Adjustable Patented Elastic Fabric for Better Fitness Workout, Unisex Fit, Small Steel Weights (9kg, S)

NO-BOUNCE FIT FOR RUNNING AND HIIT - USA-made Xyflex stretch fabric locks the weight to your body with zero vertical shift during sprints, burpees and dynamic training. It moves with you, not against you. 9 kg (20 lb) of USA steel weights included PRECISION STEEL MICRO-WEIGHTS - each 64 g galvanised USA steel weight slides in and out for fine-tuned resistance. Start light and build gradually across hundreds of configurations, from a morning walk to a high-intensity circuit EXPANDABLE UP TO 9 KG (20 LB) - more weight pockets than the ELITE model. Max load by size: Small 9 kg, Medium 11.3 kg, Large 13.6 kg, X-Large 18 kg. Built for functional fitness, rucking, bodyweight workouts and strength training ADJUSTABLE UNISEX FIT WITH SIDE LACING - YKK front zip and adjustable side lacing dial in a snug, tailored fit for men and women. Slim and comfortable over or under clothes, discreet enough for the office or a walk to work MACHINE WASHABLE, BUILT FOR DAILY USE - remove the weights, machine wash cold, air dry. An ultra-thin profile that disappears under a T-shirt, strong enough for your most demanding sessions. Designed in the USA