The Funky Trunks Hammerhead Swim Cap is perfect for swimmers with hard heads, maybe this cap will knock some sense into you. A black textured design of a hammer is printed above Hammer Head in black bold text. The Funky Trunks logo is printed in smaller black text at the opening of the cap. This cap is a perfect way to add a bit of fun to swim practice while you are hammering away at improving your stroke.