Osprey katari 7 hydration packa lightweight and streamlined hydration pack which includes ospreys 2.5l hydraulics lt reservoir. The harness comes with an adjustable design which comes with an airscape back panel which combines meshing and central ventilation channel which keeps you cool and dry on the move. Ospreys katari comes with versatile storage design including an internal organiser for bike specific tools and spares, dual front mesh pockets, zippered scratch free side pocket ideal for carrying media devices, and multiple mesh pockets.featurescomes with 2.5l hydraulics lt reservoirairscape mesh back panel with central ventilation channeldual front mesh pocketsexternal hydration accessfront zippered pocketinternal hydration sleeveinternal key attachment clipincludes organiser for bike specific tools and sparesled light attachment pointreflective detailingremovable webbing hip beltsternum strap buckle with magnetvertical centred zippered pocketwebbing grab handlezippered scratch free side pocket210d poly honeycomb constructionweighs 0.36kgdimensions 46cm x 19cm x 17cmbuy osprey hydration packs from chain reaction cycles, the world's largest online bike store.