Here's what other sites are saying:
Gregory Backpacks & Bags Nano Daypack 20L Eclipse Black One Size 1114997406. Its 20-liter capacity can handle a surprising amount of gear whether youre just knocking around town tackling trails or hitting every sight worth seeing on an overseas vacation.
Whether you are commuting, sneaking in a quick day hike, or enjoying a nice bike ride the Gregory Nano 20L Backpack will have you covered. This medium sized pack is well suited for all of these activities thanks to the dedicated hydration pocket, stable and comfortable padded shoulder straps, and one hand sternum strap buckle. Additionally a multitude of pockets keep you organized and ready to go at a moments notice.