Neoprene Swimming Hat For Open Water Swimming and Water Sports. Thermal 4mm Swim Cap With Chin Strap. Keeping your head warm whilst open water swimming is one of the key ways to retaining body heat. With our 4mm thermal neoprene swimming hat you can help stop all that precious heat escaping. NEOPRENE HAT FOR WATERSPORTS Whether you’re open water swimming, surfing or stand up paddle boarding this hat will help protect your head and ears from cold wind and water. 4MM THERMAL NEOPRENE HAT This is one of the thickest neoprene hats on the market designed for open water swimmers, surfers and other water sport enthusiasts. Designed to keep your head and ears warm when swimming or dipping in cold water. REVERSIBLE COLOUR Choose from a bright orange, pink or green neoprene hat for when you want to be seen whilst open water swimming or dipping. Reverse the neoprene swimming hat to black for when you want to be less obvious. COMBINE FOR MAXIMUM BENEFITS You can wear this 4mm neoprene swimming hat by itself, under a beanie or over a silicone swimming cap. You can even pair it up with our neoprene ear warmer swimming headband giving you whopping 8mm of warmth and ear protection! FITS MOST HEADS This thermal neoprene cap for swimming is Medium-Large size. It will fit adult heads from 55-58cm circumference measuring around the forehead. The stretchable neoprene fabric means that the hat can be worn by most men or women. (Model's head is 58cm with a lot of hair). If you consider yourself to have a large head, this may be too small. The fit should be snug not loose. SWIMMING HAT WITH CHIN STRAP - ADJUSTABLE FIT This swimming hat features an under the chin strap, which is adjustable with Velcro. You can change the tightness of the neoprene swim cap to suit your needs. The chin strap will also ensure the neoprene hat stays on your head whilst swimming. SWIMMING HAT FOR LONG HAIR People with long hair should be able to tuck it all away into this flexible, neoprene swimming hat. You can also try a high or low pony tail or bun to see which works the best for you. You might want to put your hair inside a silicone swimming cap first to help keep your hair dry. NEOPRENE HAT WITH BOUND EDGES As with all SwimCell products, we pay attention to the design details. We’ve bound the edge of this swimming neoprene hat, not only for design aesthetics but to protect the edges of 4mm neoprene making the hat more durable. OPTIONAL USE WITH SILICONE SWIMMING HAT Just like a wetsuit, this hat is not waterproof so to keep your hair drier we suggest using with a silicone swimming hat. If you'd like to know anything else about this best selling neoprene swimming hat feel free to ask. And please do check out our other open water swimming accessories.