Deuter Energy Bag Deuter-Microrip-Nylon SMART DESIGN - The slim-line Energy Bag fastens to the front of your bike so your essentials are always within reach, even while on the move; 3M reflective safety prints increase visibility in low light or poor weather conditions SECURE STORAGE - Main compartment and side pocket feature zippered closure for peace of mind on rocky or uneven terrain; Just the right size to stash energy bars, phone, wallet, and keys EASY TO ATTACH - 3 hook and loop fasteners; 2 for attaching the bag to the crossbar and one for securing to the stem QUALITY MATERIAL - Matrix RS 150D is a fine, lightweight Nylon weave with ripstop properties and high abrasion resistance; PU coating for water-resistance and seam reinforcement SPECS - The 2 oz Energy Bag measures 3 x 2 x 5.5 in and has a 0.5 L volume