If I may, Sound Professionals sells a fantastic
Shure Premium Windscreen that works with the AT853s, and I *love* it. This Shure windscreen snaps/"locks" onto the AT853 and it's a very durable windscreen. The basket inside this windscreen is a harder "plastic" substance (as opposed to a more "flimsy" rubber material, found in other Audio Technica windscreens).
Disclaimer: No, I'm not affiliated with Sound Professionals other than being a satisfied customer.