RAYMACE Bike Rear Rack Cooler Bag — 8L Insulated, Water-Resistant Trunk Pannier with Shoulder Strap

RAYMACE Bike Rear Rack Bag is an 8-liter insulated, water-resistant trunk cooler designed to keep food and drinks at stable temperatures while you ride.

This compact pannier combines thermal insulation, weather resistance and a soft-shell, lightweight build so you can carry lunches, groceries or chilled drinks on daily commutes, weekend rides and e-bike trips. Measuring 12.5 x 6.3 x 6.3 inches and weighing far less than rigid boxes, the bag fits most rear racks and detaches easily with adjustable straps and a shoulder strap for off-bike use.

How does the RAYMACE rack bag preserve cold or warm items?

The interior uses a thick aluminum film lining plus 5mm EPE foam insulation to slow heat transfer and help keep contents close to their starting temperature for hours during normal rides. The dual-zipper main compartment seals the thermal cavity while the soft-shell exterior reduces heat exchange compared with open carriers.

• 5mm EPE insulating foam combined with aluminum film lining
• Dual-zipper top to limit air exchange
• Compact 8L volume minimizes empty air and stabilizes temperature

Will this bag stand up to wet weather and daily use?

The RAYMACE trunk cooler uses water-resistant fabric that repels light rain and splashes, helping protect food and electronics from moisture during typical cycling conditions. Its soft-shell design avoids rigid components that can crack or dent, and the materials clean easily with a damp cloth.

• Water-resistant outer fabric for light rain protection
• Soft-shell construction resists damage from bumps and knocks
• Wipe-clean interior and exterior for straightforward maintenance

How does it mount to different bikes and travel off-bike?

Adjustable mounting straps secure the bag quickly to most rear bike racks including mountain bikes, cruisers and many e-bikes. When you reach your destination, a removable shoulder strap converts the pannier into a portable cooler or lunch bag in seconds.

• Adjustable straps fit a wide range of rack sizes and tube shapes
• Quick-install/removal design for fast transitions on the go
• Included shoulder strap makes the bag easy to carry off the bike

What fits inside and how is the bag organized?

The 8-liter capacity gives enough space for a small cooler pack, lunch containers or a few drinks without adding bulk to your bike. The main compartment opens with a dual zipper and a small zip pocket under the flap holds keys, cards or snacks, plus a front water-bottle pocket provides quick access while stopped.

• Main insulated compartment for food and beverages
• Small zip pocket under the flap for essentials like wallet or phone
• External front water bottle holder for hydration on short stops

Who is this for? Riders who want a lightweight, insulated solution for transporting meals, beverages or picnic items on commutes, shopping trips and recreational rides will appreciate the RAYMACE Bike Rear Rack Bag. It's aimed at cyclists who need a compact, weather-resistant trunk cooler that fits most racks, detaches quickly, and doubles as a carryable lunch or cooler without the bulk of a hard case.