Mission Cooling Skull Cap- Hat, Helmet Liner, Running Beanie, Evaporative Cool Technology, Cools Instantly when Wet, UPF 50 Protection, for Under Helmets, Hardhats, Running, Football

One size fits all is a furphy. Too tight. Couldn’t use it

I had to go out to the field with my FR clothing and safety gear in 100F degree temps. This made ALL the difference in being able to cool me down. It's so easy to dampen with a little splash of cold water from a water bottle, ring out and wave around in the air for a few seconds. It's like putting an ice pack on your whole scalp. The coolness lasts for about 2 hours and I re-dampened. Worth way more than I paid. I'm going to use it for golf, under my bucket hat (also Mission brand) for double the cooling.

I like the mission heat out products, own their neck gaitors and they are preferred over a 1/2 dozen others I've tried. This head piece is a little tight, but it will stay where it belongs under my motorcycle helmet.Works as well or better than others I've tried. It may loosen up some with more use

Me: mostly bald road & MTB cyclist who sweats a lot from the head. I give you this background and the next paragraph to help people like me who read through great reviews of a product and purchase it based on those reviews only to find it doesn't work well for me.I've tried all sorts of sweat management equipment to keep sweat out of my eyes and off the inside of my glasses while I'm riding. The Sweat Guttr does OK but interferes with my helmet. The Halo headband quickly saturates and then starts dripping into my glasses. Skull caps trap the heat in and make my helmet feel like a furnace and I usually end up taking them off.Despite my previous bad experiences with skull caps, I decided to give this Mission model a try based on their marketing claims. As the review title suggests, this product definitely outperformed every skull cap I've tried previously. It wasn't a miracle worker, however, and it did eventually allow sweat to drip.THE GOOD*It didn't feel hot. Heat wasn't trapped in like other skull caps I've tried. The evaporation kept my head at what felt like the temperature it would be if I wasn't wearing any covering. This also wasn't dependent on airflow, so it wasn't hot when riding slow in the woods on a MTB or fast on the road with lots of airflow.*Comfortable- fit well with all 3 of my helmets and didn't move around during the ride.*Kept sweat out of my eyes. My first ride with it went great. It was a lower humidity day and I took the road bike out for a 2+ hour ride at an easy pace. I started with the cap dry as it wasn't hot enough to need the cooling right out of the gate and my head would wet it quickly enough. I only had two drops of sweat fall into my glasses the entire ride. Even better, the cap pushed the front pad of the helmet where the sweat dripped from beyond the top of my glasses, so it landed on the outside rather than the inside like usual, so that was a win. The second ride was a hard hour in maybe 65% humidity and lower 70s temps. The helmet and liner saturated after 49 minutes and started dripping regularly (again on the outside of my glasses at least). Without the liner I estimate I would've reached this point after about 25 minutes. The next test was a medium effort for an hour and a half at 80% humidity and mid 70s temps. I hit saturation at 43 minutes and sweat continued to drip profusefully for the rest of the ride. I will note that the sweat was dripping from the saturated helmet pad in front, not from the skull cap. Maybe a different helmet design could improve this.THE BAD*Didn't do much for mountain biking. High humidity in the woods, low speeds, little wind and hard efforts made for a drip fest. I couldn't tell any difference between wearing this and wearing nothing. It probably delayed saturation a little, but not by much.CONCLUSIONThis performs well enough to become my go-to sweat management for warm weather rides. 4 stars overall. Mission will need to get its tech team busy designing a new super-material that can evaporate the sweat faster than I can produce it to create the perfect cap that earns 5 stars from me.

Have been wearing Halo caps for a couple years, and decided to try something new. Familiar with Mission as I have one of their cooling towels. This cap seems to be more absorbent and feels cooler when air is moving through the helmet. It also doesn't feel as hot when not moving. The gutter on the Halo doesn't actually seem to do much, other than leave a nice imprint on your forehead so not missing any big feature without it here. This fit better and feels softer as well.