Evaporative cooling material: Enhances natural body cooling for improved comfort in hot conditions
Easy attachment: Designed to fit a wide range of compatible hats for versatile use
Reusable and durable: Built to withstand outdoor activities and repeated use
Lightweight design: Adds minimal weight to hats for unobtrusive wear
Summarized by Shop
Upgrade your Hiker’s Hat by adding the HyperKewl™ Evaporative Insert to it. The cooling material absorbs and slowly releases water through evaporation, supercharging the body’s natural cooling process.
Please, check our Size Chart for a full list of compatible hats.
Compatible Hat Types
Most sun hats, including visors
Material
Evaporative cooling fabric
Installation
Adhesive backing for secure fit
Reusable
Yes
Weight
Lightweight (exact weight not specified)
Summarized by Shop
4.6
26 ratings
5
4
3
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1
Love my Tilley cooling insert!
I ordered a cooling insert for the Tilley hat I ordered and it really helped keep me cool during this heat wave in Europe!
L
Linda · June 26, 2026
my husband is very happy
he is in love with his new Tilley hat!
R
Rachel · July 14, 2026
Comfortable hat that fits well. Great for hiking, gardening and kayaking.