100% Stormproof : Built from triple layer waterproof fabric using ultrasonic seam welding technology with a WP zippered roll top closure, this allows for a fully storm proof product without the need for a liner or rain cover. Adventure-Ready Universal Fit – Quick-release bungee straps make mounting effortless on any motorcycle while ensuring a secure hold even on rough terrains. Optimized 40L Storage with Air valve – Smartly designed for efficient packing with an easy to use "twist" air purge valve for rolling down and packing with ease. Compression straps with heavy duty side release buckles allow you to cinch down according to the gear you are carrying. Tougher Than the Road – Built with rugged, heavy-duty PVC fabric that withstands abrasion, extreme conditions, and years of adventure. Zero displacement mounting - The combo webbing + flat bungee & side release buckle construction provides a true zero-displacement mounting. The fixed D Rings allow you to route the anchor straps and prevents any lateral movement of the ViaTerra DryBag when mounted correctly. More Than a Tail Bag – Converts into a duffel with grab handles & a shoulder strap, making off-bike carrying effortless. Ditch the drizzles, ditch the drama: Introducing the ViaTerra DryBag 40L, your waterproof warrior for all-weather adventures. This bag isn't just big on space (40L!), it's big on confidence. Forget flimsy liners and rain covers – the DryBag's triple-layer fabric and ultrasonic welds are like a superhero's shield for your gear, keeping it bone dry no matter what Mother Nature throws your way.