DAS Leben Snorkeling Vest - Youth or Adult DESIGN - easy oral inflation, Our Inflatable vest is specifically designed to offer added buoyancy while snorkeling, easy carrying for traveling. MATERIAL - tough tear-resistant material ensures elevated confidence even in deep water SIZE- snorkel vest size - 27" x 19", neck size: 27" BEARING CAPACITY - Fits to adults over 200lbs with water safety device NOTE - Please inspect and test this product for proper function. If any part does not function properly, do not use!