Neoprene Skull Caps by SeaSpray

Neoprene (3mm) skull cap with shallow ear flaps in black, blue or red. S/M is 54cm (stretchable) and L/XL is 55cm with 1cm greater depth than S/M (increased overall volume). 

Designed to be lower over the ears and higher at the nape of the neck to allow greater freedom of movement of the head without the cap riding up. Will fit under a helmet. L/XL size