The Energy Bag 0.5 from deuter is a real lightweight (70g). The zipped frame bag always keeps energy bars, money, mobile phones and keys within reach. The bag can be attached to the top tube with two Velcro straps that can be shortened. Another Velcro strap attaches it to the stem. The prints are reflective for better visibility in road traffic. The main material consists of 100% recycled materials and is bluesign-certified.