JanieH

Definitely go the biggest you can afford or that your certificate is good for.

Pennyhal

My problem with green/blue mats is that they smell. Go to Joann's and stand next to all the green mats and see if the odor bothers you. So I have a mat that is white. Can't remember the name off hand, but if you have issues with odor like I do, I'd avoid the colored mats. I know some people say they don't smell or it doesn't bother them. But I'd check it out just in case it might bother you.

oldtisme

Penny, the new mat smells like skunk to me, I tried a new trick just tonight on a new mat I just got, soak it in the tub with about 4 quarts of water & 1/4 cup white vinegar for 10 to 15 min. It worked!!