This Stearns Deck Hand Life vest is made with a tough nylon oxford outer shell with soft lightweight mesh for ventilation. Includes a rustproof zipper, 1" encircling body belt & side adjustments. Includes Crosstech flotation foam and 3M Scotchlite Reflective Mateiral (SOLAS grade 6755) on the panels. Minimum 15 1/2 lb. buoyancy. This vest is sold in 6 Adult sizes and is international orange. USCG Approved, Type III Vest.Please note that Size: Medium is a Non Stock size and has an approximate 10-14 business day lead time to ship. Stock availability may vary in sizes during periods of high demand. Please contact Customer Services for availability.