Amazon.com: Hat & Cap Sweat Guard Liner - Thin Visor 。Brand new and in flawless condition — these innovative sweat guard liners deliver ultimate hat protection with a cooling, comfortable feel perfect for sports, outdoor activities, or everyday wear. The application is simple, the material is lightweight, and the sweat-lock technology is highly effective. ⭐️ Features Style: Hat and visor sweat guard liner Fit: One size fits all adults and youth Fabric: Thin, soft, and lightweight material with cooling towel effect Perfect for golf, workouts, sunny days, and keeping hats clean and protected ? Condition: Brand New ? Bundle & Save ✨ Smoke-free, pet-free home. B0CQMXP9Z3