Dual molded side panels combined with flexible 600 denier fabric create a semi-rigid, weather-resistant trunk bag. Divided main compartment and expandable side panels for extra storage capacity. Rear water bottle holder for carrying more water on extended trips. Attaches with integrated straps. Pannier deployment requires a beam rack with side frames or a traditional rack with struts to prevent contact with the rear wheel. Water bottle holder, shoulder strap, carrying handle, elastic top bungees, 3M™ reflective strip, safety light clip, and optional rain cover. 22.6 L / 1380 ci 600 Denier Polyester Max load limited to rack max loading rating 36 x 25 x 21.5-29 cm / 14.1” x 9.8” x 8.5”-11.4” 900 g / 1.98 lb 900 g / 1.98 lb Attributes Bag Attachment Straps Bag Dimensions in cm 36x25x21.5-29 Bag Dimensions in inches 14.1x9.8x8.5-11.4 Bag Material Deniers Nylon Color Black Compartments 3 Light Loop Yes Primary Color Black Volume 22.6L Volume Range 21-25L