Engineered to hold items close to the centre of gravity, the Altura Vortex Waterproof Cycling Half Frame Pack allows you to keep those important belongings close to hand whilst maintaining stability on the bike. The wrap around construction make this pack compatible with many different sized bike frames whilst variable attachment points enable you to attach the straps around other cockpit bags making this a really versatile bag. Valuables will stay dry and protected thanks to the Polyamide Ripstop with TPU coating, waterproof welded seam construction and fully waterproof zip closure.Altura have also improved the hook and loop attachment straps and added reflective details making this a must have accessory for your bike packing adventures. FeaturesWaterproof, welded seam construction Polyamide ripstop fabric with TPU coating Waterproof zip closure Improved hook and loop attachment straps Reinforced Hypalon adjustable positioning Reflective detailApprox. volume 4L