- Giant-exclusive H2Tex 3-layer waterproof material
- Dual roll closure and an air bleed valve to assist with compression provide flexible packing and adjustable capacity
- Three point attachment for maximum stability
- Light attachment mount and reflective design for added safety
- Compatible with H2Pro Accessory bag
- Medium: 9L, 48 x 24cm (max)
- Large: 12.5L, 55 x 27cm (max)