Waterproof Bike Down Tub Bag for Bikepacking - Qunature

A black down tube bike bag with lots of storage space

A Khaki down tube bike bag with lots of storage space

A large capacity down tube bike bag is mounted on a blue bicycle outdoors

A large capacity down tube bike bag is securely mounted on a blue bicycle outdoors

A large capacity down tube bike bag with a water bag tube inserted

This bike down tube bag is made of three layers of fabric and is waterproof

A man is riding a bicycle outdoors with many bike bags installed on it

Waterproof Bike Down Tub Bag - Lightweight Cycling Storage for Bikepacking

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$35.99 Translation missing: zh-CN.products.product.on_sale

Spacious & Practical: The perfect gravel frame bag for long rides. Concealed opening for easy access to the water bag hose and rechargeable battery cable. Compact yet highly functional, ideal...

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Translation missing: zh-CN.products.product.lable_tags: Bike Frame Packs, Bikepacking, Down Tub Bag

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Color: Black

//qunature.com/cdn/shop/files/qunature-waterproof-bike-down-tub-bag-01_40x40_crop_center.webp?v=1756520453"> //qunature.com/cdn/shop/files/qunature-waterproof-bike-down-tub-bag-01_40x40_crop_center.webp?v=1756520453"> ) > Black

//qunature.com/cdn/shop/files/qunature-waterproof-bike-down-tub-bag-02_40x40_crop_center.webp?v=1756520467"> //qunature.com/cdn/shop/files/qunature-waterproof-bike-down-tub-bag-02_40x40_crop_center.webp?v=1756520467"> ) > Khaki

Capacity: 3.5L

3.5L

4.2L

5.0L

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Hurry, this style is selling fast!

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Features

Spacious & Practical: The perfect gravel frame bag for long rides. Concealed opening for easy access to the water bag hose and rechargeable battery cable. Compact yet highly functional, ideal for cyclists who want self-sufficiency without bulk.
Sturdy & Duarable: Crafted from tear-resistant composite nylon fabric with a waterproof coating, reinforced with a rigid internal PE structure for maximum protection. Features weatherproof zippers and extended pull tabs to endure harsh conditions. Built to conquer rugged terrain while maintaining lightweight performance.
Useful Storage: External stretch mesh pocket holds snacks, energy gels, or small items; internal elastic strap secures a mini pump. Keep all your needs within easy reach.
Stable & Easy Installation: 5-point attachment system with high-quality hook-and-loop straps and adjustable fasteners ensures a vibration-free fit. Install or remove in seconds—no tools needed.
Universal Fit: Designed to fit most bicycle frames (up to 5cm in diameter) with strong compatibility. Narrow edge design prevents leg contact while riding.

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Waterproof Bike Down Tub Bag for Bikepacking - Qunature

Waterproof Bike Down Tub Bag - Lightweight Cycling Storage for Bikepacking

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