A:AnswerI have a petite wrist so I can't speak for a large size. The band wraps around my wrist completely and still is a wee bit lose. I bought the smallest you could buy.
A:AnswerIt depends on how dirty it is and what kind of dirt ,I would take the straps off and use a toothbrush with some Dawn dish soap and wash it that way and rinse it with kinda of hot water and dry it really good, hope this helps.
A:AnswerThis band has only one size but my wife has a small wrist and it adjusts perfectly to her size. It can accommodate a larger wrist size as well.