MIR - Slim Adjustable Weighted Vest (Short Style) (Slim, 20lbs) Every items comes with weights included. Only 11" in length. Compact & Snug fit. Max weight slim model will be 30lbs. Max weight for slim pro model will be 45lbs. SHIPPING WEIGHT: Calculated only at 20lbs rate to lower shipping cost to save you money for all items. Weights are half the size of standard short and pro models. Weights can be removed in all models. Weights adjustable in 1.5 lbs increments. One size fits most. Manufacture warranty included