ScubaMax 1.5mm Metalite Neoprene Beanie

I swim in an outdoor pool in the winter, in a Colorado ski resort town, at about 7000ft. Although our pool is heated, I tend to get cold. I purchased this hood for that reason. I wear a swimming cap underneath the hood, and it works great to keep my head warm. Additionally, the hood goes down the back of my neck far enough to keep my neck warm, as well.

I use the beanie along with my zip up vest for simming laps for 60 minutes in an unheated olympic size pool. I also wear rash guards under the vest & swim suit. It works!