1Made of premium abs resin material, it has high impact strength, corrosion resistance, good abrasion resistance. 2The inner shell of the helmet is using high foam EVA, which will keep your head comfortable and safe. 3Adjustable hanging device design, clockwise for get it firm and counterclockwise for get it loose. Suitable for all kinds of head size, the adjustable range is 58-64cm. 4With 11 breathable holes in the front and back side, can effectively dissipate heat and ventilate while wearing. 5Perfect for mountaineering, climbing, caving, kayaking, rescue, aerial work, abseiling, rappelling.
