The revolver is the perfect park and pipe lid a low profile durable hard shell with just the right amount of brim and stylefeatures like an interior goggle channel which makes room for your strap and the stack vent that helps keep your goggles fog free give you all the options you need to dial in your set upsuper cool vents pull cool fresh air into the helmet while pushing heat and stale air out helping you feel fresh all daythe stack vent aligned in the middle of the helmet with the centre vent