I've actually been looking for a decent bathmat for a while now. My six year old son likes to slide around like a seal in the bottom of the shower which isn't always safe. Also, I'm 6 months pregnant and getting pretty big and almost slipped the other night trying to shave my legs.
The Melapets bathmat is made of durable allergen free vinyl that is anti-bacterial and mildew resistant as well. The compression molded rubber resists abrasion and is very durable. To top it all off, this bath mat is actually machine washable as well! I've never heard of that before! The spaces between each bubble allows the water and scum to drain away well and leave your mat clean and fresh after every shower.
If you'd like a nice feeling bath mat too, you can get one here: