Leegoal New Classic Lycra Ski Face Mask Bike Bicycle Cs Sports Football Balaclava Helmet (Black) Referential Size:45x25cm/18x10inch; Neck Ring: 33-54cm/13x21inch;Material: comfortable lycra Flexible, Smooth, Breathable, absorbent, quick-drying, soft. Can be used as Fast drying, anti-UV, windproof, breathable Suitable situations:climbing, hiking, sking, fishing, riding, etc. Leegoal bulk packing with good quality warranty