The Baby Jogger Bug Canopy Is Custom Designed To Fit Each Model Of Baby Jogger Stroller. Each Bug Canopy Is Made Out Of A Finely Woven Mesh And Completely Encloses The Front And Sides Of The Stroller While Providing Ventilation. The Baby Jogger Bug Canopy Helps Keep Flying Insects And Debris Out Of Your Stroller And Away From Your Baby.