At 99 Bikes, we stock Saddle Bags in a range of designs and sizes to suit all requirements. All featuring strong Velcro straps to ensure it doesn't jump around when you're riding along. Saddle bags are small wedge shaped bags that fit underneath the saddle and are secured to the seat post. These handy accessories are large enough to hold keys, your lifeline, more commonly known as a phone, a spare tube and a couple of CO2 cartridges, yet these bags are still small enough to not slow you down.