We advise all students and teachers to wear indoor Tabi at The Dojo.

 Students may also wear simple tube socks.  

No bare feet are allowed on the mats.

Question:
Can I wear Outdoos Rubber Tabi or Sport Wrestling shoes?  

Yes, but this would be forbidden in Japanese Dojos.  Outdoor Tabi are just that, they are for outdoors.  
Outdoor (Jika) Tabi and Rubber/Plastic soled shoes of any kind destroy the dojo mats and bring outside dirt onto the mats.
Hard soles also impede your balance and nagare (flow).

Why Indoor Tabi boots for Training?

Cotton soled Tabi (or socks) allow your Taijutsu to improve and be smoother.  
Your feet and leg muscles will build faster.
Your balance will improve.
Soft Tabi also save your knees and joints from wear and tear over time.  
Rubber soled shoes make your feet stick to the mats, which over time
may cause knee, ankle and possible hip issues.