Formidable, yet minimal, the Sportlite 20 is a great day hike backpack for the fast and light crowd who know what they're getting into and only pack what they need. Stretch side water bottle pockets. Quick-release upper compression straps. Trekking pole loops w/ upper compression strap capture. Blinky light attachment slot at base of front panel. Airscape back panel: Mesh-covered ridged foam with center air channel allows maximum ventilation while keeping the load close to the body.