The silicone Bubble Swim hat has been designed with open water swimmers in mind. The bubble design allows an added layer of insulation and the silicone material allows extra stretch for larger heads or lots of hair. The perfect open water swimming cap. Thick textured hats to keep you visible and insulated in open water Four great colours - pink, yellow, green and orange Bubble design for added insulation in cooler water Larger size Silicone material for additional comfort and fit Please note: Due to a change in supplier the exact colour and shape of the hat may differ slightly from that shown in the photos and video.