The Lezyne smart energy caddy is a lightweight tube mounted smartphone holder. Lightweight semi-rigid top tube mounted smartphone holder. Molded EVA foam structure with durable woven nylon cover. Compact design with extra wide clamshell opening. Mesh divider helps keep items in place. Smartphone pocket holds popular 4-5 inch models. Clear touchscreen compatible cover. Secure three Velcro strap design attaches to top tube.