This is a small-sized black triangle bicycle frame bag designed for mountain and road bikes, featuring a premium lightweight construction. It is made of durable water-resistant polyester fabric that keeps your belongings dry during rides. This compact bag fits perfectly in the triangle area of your bike frame, holding small essentials like your phone, keys, energy bar, repair tools without adding extra burden to your ride. It is ideal for daily commuting, short-distance riding, mountain trail adventures and road cycling trips, keeping your essentials within easy reach at all times.