This is an absolutely brilliant piece of kit for Cold Outdoor Swimming.
I live 100m from the Sea and have been using it a number of times each week. It fits very well and is so comfortable; I have a shaved head and there are no irritations at all. The chin strap fits comfortably and easily and with no buckles or Velcro, there is no chafing at all. I wore it for the first time in 6° water 🥶🏊♂️ and my head and ears were really toasty!! There is no head freeze at all. As I am in the Sea I do wear another basic swim hat on top for safety and so that I am visible. The hat was in the upper price bracket but I did some research on a number of swim hats for outdoors and I am so glad I chose this.
The service, as usual, from Simply Swim was Simply First Class. Delivery was within their timescale.
The Blue Seventy I rinse in cold water after each swim and the thermal skin dries really quickly.
I would highly recommend Simply Swim and this Blue Seventy Thermal Outdoor Swimmers Hat.
Well worth it!!