SKB ISeries Mathews 31.5 Bow Case - OD Green - The iSeries injection molded waterproof cases are constructed of ultra high-strength polypropylene copolymer resin and feature a gasketed, waterproof and dustproof, submersible design (IP67) that is resistant to corrosion and impact damage. The molded-in hinge with stainless steel hinge pins, patented trigger release latch system, comfortable, snap-down rubber over-molded cushion grip handles, secure stacking, and automatic ambient pressure equalization valve (MIL-STD-648C) all contribute to its military grade design. Quiver Compartment In-line Skate Style Wheels for Easy Transport Trigger Release Latch System