Waterproof design Built to withstand rough conditions, this frame bag features a rugged, waterproof exterior that keeps your gear dry and secure. It is ideal for daily commuters, mountain trails, and long rides in unpredictable weather. Triangular fit for stable mounting The aerodynamic triangular shape is tailored to fit snugly into most bicycle frames, offering balanced weight distribution and reduced air resistance. It is securely fastened with multiple straps for a firm, stable hold. Practical side zipper A smooth-operating side zipper provides easy access to tools, snacks, or personal items on the go, so you can grab what you need without stopping or fully unpacking. Spacious yet compact storage Despite its compact profile, the bag offers ample room for tire levers, patch kits, multitools, energy bars, or phones, making it a smart addition for casual rides and professional cycling alike.