The COREFX Pro Adjustable Weighted Vest features everything an athlete needs in a weighted vest. It has the ability to quickly adjust the weight through individual 2.2 lbs. metal weight packs that quickly slip into or out of their secure pockets. The COREFX Pro Adjustable Weighted Vest features 18 of these weighted packs and 9 slots on the front and 9 on the rear of the weighted vest so athletes can spread out the weight evenly or unevenly. Each weighted vest has a unique and ergonomic military-style design for maximum performance and comfort. The COREFX Pro Adjustable Weighted Vest fits all body types as it also has customizable Velcro straps. Fitness Equipment Features:COREFX Pro Adjustable Weighted Vest weighs 40 lbs.Includes 18 x 2.2 lbs. weight packsAdjustable weighted vest includes 18 separate compartments for weight packs (9 on front 9 on back)Military-style designAdjustable Velcro straps for a customized fit