Atheltic companion for ambitious tours and day hikes. Versatile backpack with large zippered main opening. 15L version has removable waist strap. Excellent load transfer due to body-hugging fit. Highly water-repellent, abrasion-resistant ripstop nylong. Double, lightly padded base for form stability and durability. 3 outer mesh pockets made of strong nylon tricot. Outer pocket with zipper for sun screen etc. Inner zippered mesh pocket and pockets for drinking bottles. Hydration-system compatible. Versatile attachment points on front and side. Cord compression toggle system: freely placeable or removable. Thermo-formed back panel.