Element and weather resistant fabric, weather shield, and rear vent window CPSC approved safety reflectors and a high-visibility safety flag, and reflective wrap-around accent fabric for extra care on the road Deep rear storage compartment to house footballs, frisbees, food, and more 5-point padded safety harness to protect little passengers Versatile bike coupler, compatible with most bicycles Interior dimensions: 31"L x 18"W x 21"H Recommended Weight Limit 40 LBS Not recommended for bikes with thru-axles Not compatible with Chatham Rev. Fits wheels ranging from 20"-29"