LIUHUI Universal Cooling Gel Cap Insert for Summer - Reusable Cold & Hot Therapy Ice Pad, Lightweight Design Fits Baseball Caps, Hats, Headwear - Instant Relief from Heat & Fatigue 0 Pack  (Blue)

Dual-Temperature Therapy - Chill in the fridge for 2+ hours to combat summer heat or microwave for 20 seconds (5-second intervals) for soothing warmth. Perfect for headaches, workouts, or outdoor adventures. Universal Fit & Comfort - Slim, lightweight gel pad seamlessly integrates with baseball caps, sun hats, sports headbands, and helmets. No bulk, just all-day comfort. Long-Lasting Cooling Power - Advanced gel blend (glycerin + sodium polyacrylate) stays cold for hours, keeping you refreshed during hikes, sports, or hot commutes. Skin-Safe & Reusable - Non-toxic, odorless formula. Easy to clean with a damp cloth—use it daily, season after season. Quick Prep, Easy Storage - Freeze/microwave in minutes. Compact size fits anywhere. Great for athletes, travelers, or anyone battling summer sweat!