Gregory Mountain Products Women's Deva 80 Backpack, Charcoal Gray, X-Small Vented, formed back panel features LifeSpan foam & silicone lumbar grip zone LumbarTune removable10mm insert offers user-customizable contouring for a precise backpanel fit QuickSwap 3D interchangeable pre-curved LifeSpan EVA foam harness & hipbelt in multiple sizes to precisely fit each body Included removable raincover stowes in its own zippered pocket Top-loading design with front U-zip panel access