The whole bag can be compressed with the InsideOut straps, and any hydration reservoirs can be refilled with an external hydration sleeve and reservoir hanging loop. With numerous other features, attachments and considerations, the Talon 11 is a truly versatile hiking rucksack, one that you can depend on for years of service on your adventures.FeaturesSustainable Materials - Constructed with high-quality bluesign-approved recycled high-tenacity nylonZippered panel accessZippered scratch-free sunglasses and electronics pocketFront bungee compression systemGrab handleInternal key attachment clipLidLock bike helmet attachmentStretch pocket on harnessStretch mesh side pocketsStow-on-the-Go trekking pole attachmentSternum strap with emergency whistleSide compression strapsReflective graphicsLED light attachment pointStowable single ice axe loopExternal hydration accessCompatible with Hydraulics ReservoirsPadded hipbeltTwin zippered hipbelt pocketsInjection moulded Airscape HDPE backpanel with EVA foam paddingDual access side pockets with InsideOut compressionFabric: 100D x 210D Bluesign Recycled Robic NylonMaximum Dimensions: L46 x W25 x D20cmWeight: 0.9kg