The Merak WaveCel is fully loaded with 19 ventilation channels, WaveCel protection, and premium comfort and fit features in a durable hybrid molded construction. Anon's Merak WaveCel helmet pairs revolutionary WaveCel protection with the dual hybrid construction of the ding-resistant durability of an endure-shell on top and a featherweight in-mold construction on the bottom with 19 active ventilation channels. WaveCel is a collapsible cellular structure that lines the inside of the helmet and can reduce impact and rotational force by flexing to reduce initial force, crumpling to lower impact velocity, and gliding to help redirect energy away from the head. A 360° BOA Fit System offers a quick, micro-adjustable fit with the turn of a dial, and the Fidlock magnetic helmet strap buckle allows for easy one-hand operation, even with gloves. Close-to-Head Fit WaveCel helmets are designed to fit closer to the head, providing a snug, comfortable fit. Please refer to our sizing chart for accurate measurements. If you are in-between sizes, you may want to size up. WaveCel Technology WaveCel behaves like a network of hundreds of interconnected shock absorbers connecting your head and the outer shell of the helmet. WaveCel helps distribute the impact energy through its network of cells, reduces impact forces like the crumple zone of a car, and then helps divert rotational forces by flexing and gliding. 50/50 Hybrid Shell50/50 hybrid shell construction combines Endura -shell and in-mold shell constructions for wear-and-tear resistant durability and featherweight performance. Fidlock snap helmet buckle uses magnets to allow you to open and close the buckle with one hand even when wearing gloves. 360° BOA Fit System In-shell 360° BOA Fit System features a fit dial just below the helmet shell that provides micro adjustments in a complete halo around the wearer's head.