Waterproof Motorcycle Helmet Tail Bag — Expandable 35L, 3-in-1 Rear Seat Backpack, Rain Cover Included | Universal Fit

Everything you need for the ride, and nothing you don't. This motorcycle tail bag doesn't make you choose between capacity and convenience — it gives you both, then converts to a backpack when you park.

Built from heavy-duty water-repellent Oxford fabric with reinforced stitching at every stress point, this tail bag mounts to your seat in under two minutes and stays locked at highway speeds without shifting or rotating. The anti-slip base keeps it planted, the adjustable buckle strap system wraps any seat geometry, and when the sky opens up — because in Canada, it will — the included rain cover deploys in seconds and seals your gear completely. Helmet goes in the main compartment. Rain gear, tools, and snacks go everywhere else. Pull it off, clip on the shoulder straps, and walk away.

Key Features

• Expandable 35L main compartment — fits a full-face helmet, riding jacket, or a full weekend's gear
• Heavy-duty water-repellent Oxford fabric — weatherproof at speed, resistant to road grit and abrasion
• Full rain cover included — deploys over the entire bag for complete wet-weather protection
• 3-in-1 carry system — rear seat mount · backpack with padded shoulder straps · hand carry
• Anti-slip base panel — stays locked in place at highway speeds without shifting or rotating
• Universal seat mounting — adjustable buckle strap system fits any motorcycle seat geometry
• Multiple access compartments — main cavity, front zip pocket, side pockets for quick-grab essentials
• High-brightness reflective strips — 360° visibility in traffic and low-light conditions
• Padded detachable shoulder straps — full backpack conversion in seconds, no tools required
• Durable glove-friendly zipper pulls — smooth operation in cold and wet conditions
• Weight: ~1.0–1.3 kg

In the Box

• 1x Motorcycle helmet tail bag (35L)
• 1x Full rain cover
• 2x Padded shoulder straps (detachable)
• 2x Seat mounting buckle straps
• 1x Top carry handle (reinforced)

Compatibility

Universal fit — compatible with all motorcycle types including sport bikes, cruisers, adventure bikes, naked bikes, scramblers, and scooters. No tools or permanent mounting required. Works with Honda, Yamaha, Kawasaki, Suzuki, Harley-Davidson, BMW, KTM, Ducati, Royal Enfield, and more.

⚠️ Tip: For best seat stability, route straps through the passenger footpeg brackets or under the seat latch for a no-shift install.