It's all there! The Cluster 10+3 Rucksack from Vau De offers a full line-up of features & is made with eco-friendly bluesign certified primary material, so you have everything you need for a small tour. Count on a perfect fit & reliable ventilation with F.L.A.S.H. shoulder strap adjustment, Aeroflex mesh back & ergonomic, air-permeable hipbelt. If necessary, the pack's carrying capacity can be expanded via zip from 10 to 13 liters.