What Stands Out . Protective helmet with smart foldable designQuick and easy to fold for easy storageIdealy for users of Bikes and Electric ScootersAdjustable fit system for comfortABS Outer Shell and expanded polystyrene Inner shell14 vents offer a great amount of airflowS/M fits 54-58cm . Plixi Fit The best ally for your safety it protects you with style when you ride. And with the easy snap system it can be folded down with ease. Best comfort! The Plixi Fit is an evolution of the original Plixi with the lockable dividers and the adjustable fit it offers maximum comfort. The 14 vents on the design also offer a great amount of airflow. Certification and; Protection THe Plixi Fit foldable helmet complies with US CPSC and the European EN1078 standard  helmets for pedal cyclists and for users of e-scooter skateboard roller-skating and kick scooters. And offers the same protection as a normal helmet. Features and Specs . Adjustable straps with chin protectionVolume divided by 3 when foldedAdjustable fit system and lockable dividersSize of the helmet when folded 21 x 11 x 16 cmWeight 440 g for the S-M helmet and 490 g for the L-XL helmetSold with inner fitting pads of various thicknesses14 Airflow Vents We also sell this helmet in L/XL fits 59-62cm . click here to view. .