Apidura's most durable and spacious handlebar bag, designed to store lightweight compressible kit on long distance bikepacking tours. A reinforced attachment system removes the need for a front rack, improving stability and handling. Dual roll-down closures and an air release valve let you customize the bag’s capacity to fit your needs, whether you’re riding for days, weeks or months. The 9L is suited to endurance road racing. Both sizes can be further expanded with Apidura's compatible Expedition Accessory Pocket. Durable construction. Flexible capacity. Compression air release valve. Secure attachment. Seam welded waterproofing. Trilon Waterproof, weldable & durable trilaminate with cross-woven core. PFA & PFC-free. Welded Waterproof RF welded seams & bespoke fabrics for a 100% waterproof and ultra durable construction. Durable Built to last, using bespoke fabrics and tested designs to endure the harshest conditions. Features Weight: 9L 250g. Storage Configuration: Main compartment / External bungee tie down. Closure System: Roll down and quick release buckles / Air release valve for compression. Attachment System: 2 velcro straps attach to handlebar / 1 velcro strap attaches to headtube. Waterproofing: Seam Welded – bespoke materials and RF welding create watertight seams (Must be rolled 3 times for complete waterproofing). Visibility: Reflective graphics / Light attachment point.