Great for travel, the Scout BC has a 16 lb capacity rear weight system. It comes standard with a 24 lb lift low profile heavyweight bladder with elastic retractor Features: 24 lb capacity low profile bladder Reinforced nylon construction Two zippered utility pockets Adjustable elastic waist panels 4 Stainless steel D-rings Adjustable sternum strap 16 lb capacity rear mount weight system Vest Measure Waist Size Shoulder Measure Shoulder to Waist SM 28"-35" SM 14"-18" MD 33"-41" MD 18"-22" LG 37"-45" LG 22"-26" XL 42"-50" XL 26"-29"