STAR UNION 1.5L Waterproof Bike Saddle Bag, Reflective Under-Seat Storage

Compact 1.5L Storage for Everyday Cycling

Keep your phone, wallet, keys, snacks, compact bike tools and tire repair essentials organized with the STAR UNION 1.5L Bike Saddle Bag.

Designed for secure under-seat installation, this lightweight saddle bag combines durable 900D Oxford fabric, a water-resistant PU coating, internal mesh pockets and reflective details for commuting, road cycling and weekend rides.

Why Riders Choose It

1.5L Everyday Storage

The spacious main compartment provides practical storage for phones, wallets, keys, snacks, gloves, compact multi-tools, tire levers, patches and other daily cycling essentials.

Organized Interior

Built-in mesh pockets help separate smaller items and keep them from moving around inside the bag while riding.

Durable 900D Oxford Fabric

The 900D Oxford exterior is designed for everyday riding and helps resist wear, friction and road debris.

Water-Resistant PU Coating

The PU-coated fabric helps protect the contents from light rain, road spray and dust. The bag should not be submerged in water or exposed to heavy rain for extended periods.

Reflective Details

Reflective elements improve visibility when illuminated during early morning, evening and low-light rides.

Rear Taillight Attachment Loop

The rear attachment loop allows a compatible bicycle taillight to be installed for additional visibility.

Taillight is not included.

Stable Under-Seat Installation

Adjustable hook-and-loop straps allow quick, tool-free installation beneath the bicycle saddle and help keep the bag stable while riding.

Fit and Compatibility

Designed for most road bikes, mountain bikes, folding bikes and commuter bikes with sufficient space beneath the saddle.

Before ordering, please check the available space between the saddle, seat post and rear tire. Make sure the bag does not contact the rear tire after installation.

Specifications

• Product Type: Bike Saddle Bag
• Capacity: 1.5L
• Material: 900D Oxford Fabric with PU Coating
• Product Weight: 125 g
• Dimensions: 18 × 9.5 × 11 cm / 7.1 × 3.7 × 4.3 in
• Interior Storage: Built-In Mesh Pockets
• Installation: Adjustable Hook-and-Loop Straps
• Safety Features: Reflective Details and Taillight Attachment Loop
• Mounting Position: Under the Saddle
• Compatibility: Road Bikes, Mountain Bikes, Folding Bikes and Commuter Bikes

Package Includes

• 1 × Bike Saddle Bag

Taillight and cycling accessories shown in the images are not included.

Frequently Asked Questions

What can the 1.5L saddle bag hold?

It can hold a phone, wallet, keys, snacks, gloves, compact bike tools, tire levers, patches and other small cycling essentials.

Is the bag fully waterproof?

The PU-coated 900D Oxford fabric helps protect the contents from light rain and road spray. Do not submerge the bag or expose it to heavy rain for extended periods.

Will it fit my bicycle?

It fits many road bikes, mountain bikes, folding bikes and commuter bikes. Please check the available space beneath your saddle before ordering.

Is a taillight included?

No. The bag includes a rear taillight attachment loop, but the taillight is sold separately.