how long do you have to soak it?

No need to soak, just wet it thoroughly under the faucet.

Are there different sizes or one size?

One size but they fit everyone from our football team to the coaches. Really work well, just don't dry in dry or use fabric softener. Seems that breaks down the material.

What's the difference between this and the VaporActive model? I would be using it under a motorcycle helmet.

Hello, Our new Mission VaporActive Cooling Skull Cap has an exposed elastic allowing more stretch for a better fit. More importantly it’s a different technology. Vaporactive is our hyper-evaporating technology and our Mission Enduracool (HydroActive) Cooling Helmet Liner is our wet-to cool technology (HydroActive).Please don't hesitate to contact us with any further questions.Thank you,

It says wring it out. Does that mean completely or leave a little cold water in it?

Depends on what you feel like. I use mine mostly dry under a bicycle helmet to block the sun, but when it's really hot outside I wet it. If it's not rung out some, water runs down out of the cap, which isn't bad when HOT. Or ring out enough so it doesn't, you'll learn what you like/need. I have several now, even one with a flap at the back to protect my neck from the sun when mowing. Wish I had these years ago! I like the white best, but they show the dirt fast.

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

Product ID: 314512331

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🧢Lightweight, ventilated mesh for max airflow

☀️UPF 50 sun protection, chemical-free cooling

❄️Cools up to 30°F below body temp in <1 min

Description

❄️ Stay Cool, Stay Ahead — The Ultimate Helmet Liner for the Driven Millennial

SUN SMART SAFE - UPF 50 protection shields your skin while the HydroActive cooling tech stays effective wash after wash.
HELMET READY COMFORT - Feather-light, non-slip fit designed to wear seamlessly under helmets and hard hats.
INSTANT CHILL ANYTIME - Activates in 3 easy steps—wet, wring, wave—for up to 2 hours of refreshing coolness.
VERSATILE ALL SEASON GEAR - Perfect for running, cycling, football, or any high-intensity activity demanding cool, breathable headwear.
BREATHE EASY PERFORM HARD - Ventilated mesh crown maximizes airflow and wicks moisture to keep you dry and focused.

The Mission Cooling Skull Cap is a high-performance, lightweight helmet liner and running beanie featuring HydroActive evaporative cooling technology that lowers skin temperature by up to 30°F within a minute of activation. Designed with breathable mesh and a snug fit, it offers UPF 50 sun protection and chemical-free, long-lasting cooling for athletes and professionals who demand comfort under helmets or on the move.

Specifications

ASIN	B00UR4HPEI
Age Range	Adult
Batteries Included?	No
Best Sellers Rank	#200,136 in Fashion ( See Top 100 in Fashion ) #584 in Men's Skullies & Beanies
Brand	MISSION
Color	Digital Camo Gray
Customer Reviews	4.4 4.4 out of 5 stars (9,312)
Date First Available	9 April 2015
Department	unisex-adult
Features	Breathable, Sun Protection
Included Components	Mission Cooling Helmet Liner- Digital Camo Grey
Is Discontinued By Manufacturer	No
Item model number	103908
Manufacturer	Mission Athlete Care
Material Composition	Body: 92% Polyester/8% Spandex; Mesh: 100% Polyester
Material Type	Polyester Spandex
Number of Items	1
Number of Pieces	1
Outer Material	Polymer
Product Dimensions	26.67 x 26.67 x 10.16 cm; 9.07 g
Season	Fall, Spring, Summer, Winter
Size	One Size
Sport	Football, Triathlon
Style	Beanie

Reviews

J**E

Works fine. Fits my 8 yr olds head good. He wears it under his football helmet.

24.08.2015

G**O

E' leggerissima.Non ci si accorge di indossarla.Tiene veramente fresco. La consiglio come sotto casco ma anche per chi lavora sotto il sole.

11.08.2017

S**N

Works. Feels cool when sweating,

13.06.2018

A**A

Great idea and it certainly makes a difference on a hot day

15.09.2016

J**E

I live in the desert and I use this in my garage when doing woodworking or other activities there when it is hot. It would be perfect if they would make it in a couple of sizes, like Small/Medium and Large/XLarge. I have a big head and this is tight. It will gradually stretch a little bit, but one a little larger would be appreciated. I have several Mission Enduracool products, and they work well.

16.09.2015

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