This inflatable PFD with HIT™ in a stylish Competition version features a SecureZip™ closure that can withstand rigorous activity, heavy duty coated nylon for increased durability, and is lightweight, comfortable, and compact. USCG approved/Type II. Hydrostatic Inflator Technology (HIT™): Reliable Inflation--inflates only under hydrostatic pressure, and not prematurely due to rain, humidity, or splash. No maintenance required for five years (unless fired). This vest uses Mustang Survival Rearming Kit Model MA7214 which is sold separately and can be found through keyword search "Rearming Kit Model MA7214".