Welcome to our store, I hope you can find the products you need in our store~ Note: The Float Jacket is a functional product. When choosing the size, the choice is mainly based on the weight. Other sizes are only for reference. It is recommended to be a net weight tight-fitting size; If you are used in outdoor sports such as swimming, diving, motorboats, etc., it is recommended to choose a tight-fitting ; If it is used in recreational activities such as yachting, fishing, etc., it is recommended to choose a size one size larger and looser. Specification: Color: black, blue, red Material: Neoprene Net weight: XS (0.3KG), S (0.42KG), M (0.5KG), L (0.56KG), XL (0.62KG), 2XL (0.68KG) Gross weight: XS (0.3KG), S (0.42KG), M (0.5KG), L (0.56KG), XL (0.62KG), 2XL (0.68KG) Suggested weight: XS (20-30KG), S (30-50KG), M (45-60KG), L (60-80KG), XL (75-100KG), 2XL (85-120KG) Product size: XS/S/M/L/XL/2XL Applicable age: adults, children Product features: high buoyancy, high safety factor Packing list: 1xFloat Jacket Notice: 1.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before your purchase. 2.The colors may have different as the difference display,pls understand. About this item SNUG NEOPRENE FIT: This float jacket is crafted from premium neoprene that fits snugly when dry. As the material expands slightly when wet, a tight initial fit ensures optimal buoyancy and comfort during swimming, kayaking, or boating activities without restricting movement. SECURE ADJUSTABLE DESIGN: Featuring a durable front zipper and 1.5-inch nylon tension webbing with double-socket buckles, this swim vest offers even force distribution. The adjustable waist belt allows for a customized fit across various body shapes, ensuring the safety vest stays firmly in place.