The Lezyne Smart Energy Caddy is a lightweight semi-rigid top tube mounted smart phone caddy made from molded EVA foam halves with a durable woven nylon cover.Clamshell pod design opens to provide easy access and a mesh divider keeps items in place Smart phone pocket holds any 4-5" phone model and features a clear touch-screen compatible panel Three velcro straps attach the Caddy to the top tube