Have you got a head? Great, you can read on. Get ahead of your squad with brand new Funky Trunks and Funky silicone swimming caps. Shop our range of colourful swim caps co-ordinate with specially selected Funky Trunks swimwear to make you feel as one with the world. Made from durable latex-free silicone to give a comfortable fit, they are suitable for all human heads, and larger dogs.