Would this cover fit my City 12 Single series buggy?

Hi Shelley, Thank you for your enquiry. This Baby Jogger Rain and Wind canopy is custom designed to fit each model of Baby Jogger stroller and therefore should be suitable. However, we would recommend contacting your nearest Baby On The Move store to view our range of sun and storm covers available in store that may also be suitable for this buggy. If you follow the link https://www.babyonthemove.co.nz/store-locations/ this will take you to our on-line store finder. Here you can find contact details for your nearest Baby On The Move store where one of our team experts can help find a suitable solution for a product you may be searching for and assist you with any further questions regarding our range of products available. We hope this has helped with your query.