This bicycle upper tube bag features a sunshade design, crush-resistant hard shell, and waterproof fabric. It has a carbon fiber texture PU exterior and trimmable self-adhesive straps for a secure fit. The bag is suitable for 4.7-6.8 inch screen cell phones and can hold various cycling items. It is made of PU, EVA, and TPU materials, and has a capacity of 1L. The bag is approximately 198mm x 130mm x 95mm in size and weighs about 155g.