North Coast WetsuitsBeanie hat 3mm neoprene stretchy very warm / waterproof (also great for OCR / Mudders). We sell our Beanies to folks that do this link SUP, open water swim, triathlon, jetskiing, kitesurf, kitesurfing, surf live saving, surf live save, surfing, stand up paddle boarding, water skiing, wakeboarding, mud runs, OCR, tough mudders, triathlon, camping, walking, cycling, snorkel, dive, scuba and much more

I bought this as I was doing a winter obstacle course race and I knew the course had quite a bit of water.Wearing this you don't really know it's there. It's light and very comfy and does the trick at keeping your head warm. A great product and would highly recommend it to anyone. It's a perminant fixture in my race bag!

Kept my head warm and brain-freeze-free during Tough Guy 2017. No complaints

Excellent, stays on when wearing over a silicon hat, haven't tried it on its own. Keeps my head toasty in 6° water.

overall very snug fit, keeps your head and ears warm and toasty, on the down side when dinghy sailing in a force 5 or more you cant hear a thing.

Was concered about how it would fit (having a rather large head). I am very pleased with the outcome.

Not good look

Best hat ever. Great for running in & keeping your head warm too!!! Just did the tough guy 2017 & was great wearing this hat. Best hat I've ever brought. Great fit too.

It's far too tight, will only use it sparingly.