Instant cooling relief for hot conditions Provides immediate cooling comfort to help reduce heat stress and maintain focus during outdoor activity. The refreezable cooling insert delivers fast, targeted temperature relief when worn in a compatible hat. Reusable and eco-friendly Designed for repeated use: simply refreeze the insert after use. Reusable design reduces single‑use waste and keeps cooling performance consistent over multiple outings. Fits a wide range of hats and helmets The compact cooling insert is compatible with many sun hats and helmets, giving a secure fit for athletes and outdoor enthusiasts. Use it in caps, wide‑brim sun hats, or under a climbing or biking helmet for effective cooling where you need it. Lightweight and portable Slim, low‑profile design makes it easy to carry in a backpack or gear bag. Take it on runs, hikes, or to the job site for on‑the‑go cooling without added bulk. Key attributes Function: refreezable cooling insert for hat/helmet use, provides instant cooling when worn Compatibility: fits a variety of sun hats and helmets for secure placement Portability: lightweight and compact for easy transport and storage Reusability: designed for multiple freeze/thaw cycles for long‑term use Practical use scenarios Running: Slip the insert into your hat before a long run to help limit overheating and maintain concentration. Camping: Use during daytime heat while setting up camp, hiking nearby trails, or relaxing at the campsite. Climbing: Place the cooling insert under your helmet to reduce heat buildup on exposed climbs and during rest breaks. What you get A practical, reusable cooling insert that reduces heat stress, fits most hats and helmets, and travels easily with your gear. Ideal for outdoor athletes and anyone spending extended time in hot conditions.