1. Dual sided top tube bag with a large touchscreen area for precise, responsive control. It is compatible with phones up to 0,000000000000000000000000000000 2. Practical and fast access - Large 2 L capacity - Includes an upper phone pocket and two side pockets for daily essentials and maintenance tools - Sticky adhesive design provides comfort and enables easy access to items during the ride 3. Safe and stable mounting - Multiple mounting methods for secure, stable attachment on your bicycle - Triangular adhesive strips combined with a mid level anti-slip leather help prevent shaking or wobbling while riding 4. Double layer thick foam protection - Double-layer thick foam padding delivers cushioning and protects your belongings during the ride Use scenarios - Daily commutes: keep your phone, keys, and small tools within easy reach, with quick access during stops - Weekend rides and longer trips: store essential tools, spare items, and maintenance gear in accessible side pockets and the top pocket - Mountain biking or gravel adventures: secure, stable fit that minimizes movement on rough terrain, with protective padding for valuables