Lazer mountain bike helmets are designed to do what they should be doing---ventilate well with a secure fit while the mountain biker is riding over very technical trails. The helmets are also popular with cyclocross riders, skateboarders and inline skaters. Lazer mountain bike helmets have visors to protect from the debris and sun. Fit is perfected with the Rollsys® Retention System that surrounds the entire head and can be easily adjusted with a simple turn of a thumb wheel. This system is secure and designed to allow the rider to find a precise, safe and comfortable fit. Lazer helmets are made with liners that absorb the impact in case of crash. The shells are puncture resistant and they slide on a crash. The Multi-directional Impact Protection System (MIPS) helmets have a third layer that is added between the liner and shell. As a result, the shell can move in relation to the layer which adds one more level of protection. The Oasiz Mountain Bike Helmet, with 21 vents, has all that is required by a mountain biker who looks to protect his or her head on an off-road trail. The Oasiz won the 2011 Eurobike Award for the features designed to meet the needs of a competitive mountain bike rider—fit, comfort and protection. The Oasiz MIPS has the extra protection of the Multi-directional Impact Protection System. The Ultrax Mountain Bike Helmet has 23 vents and it protects at a very economical price.