For the serious runner. The North Face TR 10 Trail Run Backpack. Brand New with Tags. 100D chess nylon, stretch fabric. Lightweight breathable mesh with polygiene on the back / Velcro top flap / Center double zipper opening main compartment / Compression bungee cord / Reservoir dedicated compartment. Stretch pocket on the bottom of the main unit for accessing from the left and right side; Mesh pocket with zipper on the inside of the main unit; Slit mesh pocket on the left side of the main unit; Soft binding tape for skin contact. Stretch bottle pocket with elastic spindles on shoulder harness / 3D stretch slit pockets at lower front / Stretch slit pockets on both sides. 3 chest straps for improved fit / Top chest strap adjustable height / Rash point / Reflective logo /.