







Orders under $29.99 ship for $4.99, while orders of $29.99 and above enjoy free shipping (3–5 business days). $10 extra applies for bulky items.
In-stock items ship from our U.S. warehouse in 3–5 business days; international orders take 7–12 business days when U.S. stock is unavailable.
We offer a 30-day hassle-free return and exchange policy starting from the date you receive your item. To be eligible, products must be unworn, unused, with tags attached, in original packaging, and accompanied by proof of purchase. If the item is defective, damaged, or incorrect, we cover the return shipping cost; for size or personal preference returns, the customer is responsible for shipping fees. Please inspect your order within 72 hours and contact us for any issues. Refunds will be processed within 10 business days after we receive and inspect your return. Please contact customer service before returning items and send returns to the designated address; unauthorized returns will not be accepted. For questions, email-contact@rockbrosus.com
Estimated Delivery Timeline:
Engineered with advanced ice silk fabric, this ROCKBROS helmet liner delivers exceptional cooling performance during intense summer rides. The ultra-lightweight, moisture-wicking construction efficiently transfers heat away from your scalp while preventing sweat accumulation. Designed with an ergonomic fit to seamlessly integrate under any cycling helmet, providing maximum comfort without compromising ventilation or safety during extended rides in hot conditions.
| Feature | Description |
| Brand | Rockbros |
| Fabric type | Polyster |
| Care instructions | Machine Wash |
| Size | Uniform |
| Weight | ~20g |
| Color | Black |
| Usage | Suitable for men and women |
