All the benefits of the classic Hydraform™ Handheld with added low profile storage and insulation sleeve. Jett-Lock™ Cap Squeeze N' Flow Design with new ergonomic Spout & Self-Sealing Locking Valve. Ergonomic design allows hand to completely relax. Fully breathable AirFlow™ ultra soft inner. Easily adjusts to fit any hand size. Includes ergonomic hand-formed 16oz bottle. • New 16oz. capacity • Thumb-lock™ sleeve design for grasp-free carrying • Ergonomic bottle eliminates hand tension • Integrated insulator sleeve - removable for cleaning • Adjustable strap for a perfect fit • Leak-free optimal flow spout • Great for hot & cold weather use • All Amphipod bottles are recycling symbol #4 and are BPA-free