The eWheel helmet is offered by La Martina specifically in response to the rising global phenomenon of eWheel polo. Suitable for urban cycling, scooting, e-wheeling and skating (but not horse-riding or polo) this minimalist helmet is very, very cool indeed. Features: Built in low visor One-handed magnetic fastener Vegan leather straps Integrated dial fit system for easy size adjustment Secret poplock for securing your helmet to a bike/scooter/e-wheel Built-in low profile visor Lightweight helmet at 410g (S) 460g (M) 490g (L) Dual-certified for cycling and skateboarding 7 vents with internal channel PLEASE NOTE: this helmet is not certified to the safety standards required for any equestrian sport and is not certified or suitable for polo on horseback. Customers are ultimately responsible for the correct use of any safety equipment. Sizes: Small: 54-57 cm Medium: 57-59 cm Large: 59-62 cm