LongLasting Refreshment: Rapid cooling after refrigerating, with a PVC gel insert that absorbs heat efficiently to reduce summer heat discomfort for hours. Sturdy Reusable Solution: The gel withstands multiple cooling cycles, enabling reusable cooling technology and ecofriendly use with minimal need for replacements. Wide Headwear Compatibility: Seamlessly fits a wide range of headwear, including baseball caps, sunhats, and helmets, without alterations, ensuring flexible performance across different styles. Comfortable Under Headwear: Soft, skinfriendly surface with no added pressure or weight; lightweight, breathable design stays comfortable under hats for extended wear. Key attributes Function: Reusable hat ice pack for cooling under headwear Material: PVC gel insert designed for efficient heat absorption Compatibility: Baseball caps, sunhats, helmets (no alterations required) Performance: Longlasting cooling with durable gel for repeated use Use scenarios Outdoor work or sports: Wear under a cap or helmet during hot training sessions or physically demanding outdoor work to maintain comfortable head temperatures. Daily commuting in heat: Use under a hat during trips, walks, or rides to stay cooler on hot days without bulky gear. Outdoor events or travel: Ideal for festivals, sightseeing, or long outdoor activities where headwear is worn for extended periods.