1. Transferring facial pressure to the auxiliary headgear support, reducing facial discomfort and pain caused by wearing aviator glasses for long periods of time 2. Lightweight design, no burden to wear 3. High elastic sponge material, strong support, more comfortable to wear, and effectively reduce the feeling of pressure when wearing 4. Adjustable elasticity to meet different needs 5. Easy to install and use 6. Material: polyester, nylon, EVA sponge, PLA 7. Size: about 20 x 5 x 5cm 8. Weight: about 36.4g 9. Note: only auxiliary headband, no other included
