Lezyne smart energy caddy 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 its clam shell pod design opens to provide easy access and a mesh divider helps keep items in place the smart phone pocket holds any popular 4 5 phone model and features a clear touch screen compatible panel for full control of your phone three velcro straps attach your caddy to your bikes top tube weight 8