The Connelly 4 Belt Nylon Adult Life Vest is a great way to stay safe on any boating excursion at an awesome price. Four Adjustable Straps are added to dial in your fit on how you want the vest to feel. The Belts stay hidden for a sleeker looking and increased mobility for leisurely rides or when you're flying across the water on a tube. Hidden Belts- Helps increase mobility. Adjustable Straps- 4 adjustable straps for customizable comfort.