Expandable Storage Design - The bottom compartment expands to increase capacity when more gear space is needed without compromising balance Durable Ripstop Fabric - Made from 210 ripstop nylon for reliable performance against tears and abrasion during rough rides Water Resistant Protection - Coated material and polyurethane zippers keep moisture out to protect stored items from rain and splashes Adjustable Mounting System - Hook and loop straps offer flexible and secure attachment to a wide range of frame shapes and sizes Organized Interior - Multiple compartments and pockets make it easy to store tools, snacks, and accessories within reach Lightweight Construction - Built to provide ample storage while maintaining a low overall weight for performance efficiency Low Profile Shape - Designed to fit within the bike frame for optimal aerodynamics and stability during rides Easy Access Zippers - Smooth-glide zippers provide quick access to gear even while wearing gloves

Capacity: 4.3L/5.8L Expanded Dimensions: 457.2 x 177.8mm/279.4mm Expanded Material: 210 Ripstop Nylon (Coated) Zippers: Polyurethane-Coated Water Resistant Mounting System: Hook And Loop Straps Water Resistance: Water Resistant Product Weight: 360 Grams Compartments: Expandable Bottom + Multiple Interior Pockets Recommended Use: Bikepacking/Commuting/Touring Fit Compatibility: Universal Frame Fit Closure Type: Dual Side Zippers