The NRS Chaos Side Cut Water Helmet is an excellent choice for kayakers, rafters, stand-up paddlers and canoeists looking for safe, economical and comfortable head protection. a This adjustable helmet gives you the features you need and the style you want at a price that won&';t break the bank. a Durable ABS plastic shell dissipates impacts. a Dual-density EVA foam provides outstanding comfort and protection. a The BOA dial-fit retention harness lets you easily customize the fit for total security. a Eight ventilation ports keep you cool on those hot days. a Keep the removable ear pads in place for extra protection, or easily remove them for improved hearing. a Multiple sizes and quick-adjust harness ensure you&';ll find the right fit. SPECS: Shell Material:- ABS plastic Liner Material:- Dual-density EVA foam Vented:- Yes Adjustment:- BOA dial ratchet Ear Coverage:- Removable Features:- 8 ventilation ports