REFLECTIVE STRIPES - practical reflective strips are located on the back, sides, and top of the bag. This provides extra protection for the cyclist and increases visibility on the road after dark. RACK MOUNTING FOR THE LUGGAGE RACK - this is a bag that fits all bikes with a carrier. This is due to the 2 practical Velcro straps, which allow it to be easily and quickly adjusted to the width of the luggage rack. CAPACITY - the bag has a capacity of 9 liters. You can fit snacks, drinks, and much more in it. The bag can even hold a 1.5-liter bottle. An additional feature of the bag is a detachable and adjustable shoulder strap with rotating carabiners. SPECIFICATION - black color; material: polyester + aluminum foil; thermal filling: yes; strap adjustment: 75-135 cm; dimensions: 40x18x17 cm; weight: 320 g; weight in packaging: 367 g. SPECIFICATION black color material: polyester + aluminum foil thermal filling: yes strap adjustment: 75-135 cm dimensions: 40 x 18 x 17 cm weight: 320 g weight in package: 367 g INCLUDED bag detachable strap