Ideal for Summer: The bandana cap is for all-season,especially for hot summer.It's made of 88% polyester,12% elastane,quick drying and moisture wicking, keeping the sweat from dripping down your head o driping in eyes, and also preventing itching. . Cooling Feeling: The cycling quick dry skull cap has a cooling feeling when wearing.And it has UV protection,which can effectively block most ultraviolet rays,keeping the head from burning outdoors in hot days. . Fastening: Tie . Arcweg306330US . Comfortable Wearing: The skull cap bandana is breathable,light,and soft,with Acsergery high stretch,fitting the contour of the head, without tight feeling.And this lightweight skull cap is mede of flatlock stitching ,it won't rub on the head. . Adjustable Size: There is the tie for the fixation on the back of the cycling skull cap,the size could be adjusted by knotting, plus its high elastic,the cap is ideal for many people with Acsergery different head circumference. . Multifunction: The sports skull cap summer is ideal for many occasions,such as fitness, jogging, mountain biking, road biking, swimming, surfing, snorkeling, summer gardening,fishing,mountain climbing,etc,. .