It"s an ideal solution to keep documents, cell phone or small accessories of therapy work in a safe place. It"s water repellent and quick and easy to attach to the harness-by velcro on the front side and by special oval rings to the chest-strap. The Universal sidebags fit all IDC Harnesses. Capacity 0.3 Lit Measurement of the actual bags is6" in length (a little over 15cm)4" in height (a little over 10cm)Available in Black