Waterproof Bicycle Bag Small Top Tube Bike Bag

We understand that reliability is paramount when facing sudden heavy rain or muddy sections. This top tube bag builds a comprehensive waterproof system from the inside out:

Main Material: High-Tenacity TPU Composite Fabric
TPU (Thermoplastic Polyurethane) is the material of choice for top-tier waterproof gear. It boasts excellent waterproof, abrasion-resistant, and tear-resistant properties. Compared to ordinary PVC or nylon, it's softer, more eco-friendly, and won't become brittle over time or in cold temperatures, ensuring peak performance even in harsh conditions.

Core Craftsmanship: High-Frequency Welding
Traditional stitching needle holes are the main cause of water leakage. We employ high-frequency welding, using heat and pressure to fuse panels seamlessly, creating a truly stitch-free construction. This forms the bag into a complete waterproof "capsule," fundamentally eliminating the risk of water seepage through seams. Even in a torrential downpour, your belongings inside stay completely dry.

Critical Defense: Professional Waterproof Zipper
We specifically use a professional-grade waterproof zipper. Its tightly interlocked tooth structure and special coating effectively block water ingress. It opens and closes smoothly yet seals tightly, providing another layer of trusted protection.

Flexible Mounting, Secure Anywhere

Universal Hook-and-Loop Strap System: We've ditched complicated mounting steps for high-strength, aging-resistant hook-and-loop straps. This design offers immense installation flexibility. You can not only securely attach it to the standard top tube position but also easily adapt it to other locations like the handlebar or behind the saddle, meeting your diverse carrying needs. Once tightened, it stays firmly in place, without slipping or shifting, even on rough terrain.

Materials: TPU

Size: 22 x 7 x 9.8cm

Color: Customized

Logo: Customized

Item: QCW25066