- Crash Cap Insert Liner : Designed to fit securely under your cap, this 180mm long, 190mm wide, and 105mm high insert provides a comfortable addition to your headwear with a circumference of 60-62 cm. - Lightweight & Comfortable : Constructed from durable yet lightweight PE material, this baseball helmet insert ensures all-day comfort, making it ideal for extended wear during summer activities without sacrificing performance. - Enhanced Head Protection : This insert adds an essential layer of safety to your cap or hat, making it perfect for low-risk work environments and outdoor sports. Protect your head from minor impacts and bumps with ease. - Breathable & Adjustable Design : Featuring multiple ventilation holes, the insert promotes excellent air circulation, keeping your head cool and comfortable. An adjustable strap allows you to customize the fit for maximum security and comfort. Use Scenarios : 1. Outdoor Sports : Use this insert during baseball games, cycling, or hiking to safeguard your head while maintaining comfort. 2. Workplace Protection : Integrate it into your regular cap for added protection while performing light-duty tasks in various industries. 3. Leisure Activities : Ideal for casual outings or family gatherings, ensuring a blend of style and safety. This crash cap insert liner stands out for its functionality, compatibility with standard caps, and high-quality material, making it a reliable choice for anyone seeking enhanced protection and comfort.