Decathlon | Mountain Bike Helmet EXPL 100 - Blue

Comfy and light, this helmet protects your head from branches and shocks. Bonus features: 9 wide vents and an adjustment dial. **Key benefits:** * User comfort: Comfortable, removable foam pads prevent pressure points * Ventilation: 9 large ventilation channels * Weight: Size M: 340 g Size L: 390 g * Adjustable: Adjust the helmet to your head using the adjustment dial. * Ease of use: Adjustable side straps * Impact protection: Complies with EN 1078.**Technical information:**Features: 9 vents. Chinstrap fastening: clip Occipital adjustment: dial.Comfort foam: detachable and washable (available from after-sales) Visor:fixed Outer shell: ABS Dimensions in size M: Length: 30 cm, Width: 21 cm,Height: 20 cm ; How do you choose your mountain bike helmet size?: To findyour helmet size, simply measure your head circumference (around theforehead). This mountain bike helmet is available in two sizes: M: 55 - 59 cmL: 59 - 62 cm ; EN 1078 certified: European standard setting out therequirements and test methods for helmets to be worn by users of inlineskates, skateboards, scooters and bicycles. The corresponding requirements andtest methods cover the following aspects: construction, including field ofvision; shock absorption properties, characteristics of the retention system,including the chinstrap and tightening devices; marking and information. ;When should I replace my helmet?: We recommend replacing your helmet in 2cases: 1/ After a fall: In the event of a fall, your helmet's material candeteriorate or even break. Sometimes, you won't even notice. That is why werecommend replacing it if you have the slightest doubt. 2/After 5 years ofuse: The foam deteriorates. It can deteriorate due to impact, where it isstored, the climate, and its use. We therefore recommend replacing your helmetat least every 5 years. ; How do you adjust the helmet?: 3 quick steps foradjusting your helmet in 2 minutes: 1/ If needed, pull your ponytail throughthe back of the helmet (lower the dial's rim). 2/ Adjust and clip the buckleson the 2 straps: check that you can still slide 2 fingers between the strapand your chin. 3/ Adjust the tightness around your head using the rear dial.The helmet should be in contact with your head, without tipping forward,backward, or sideways, even when you're moving.