I have read this M.A. question: What are the ways to get sweat stains out of a Gi? My gi is at least two years old (probably a lot older). It is an Adidas J800 (do)gi. It is 30% polyester (800 g/m² ...
Is there any official certification system for Judo mats? What specific characteristics should one be looking for in a Judo mat? Remember the primary purpose of the Judo mat is injury prevention. ...