I ordered one and it easily fit my 1/8" mat with yogitoes non slip towel rolled up in it. There is plenty of room for another towel, block and other items inside the large mat pocket. This mat opens up quite a bit. Small pocket on outside is clearly for things like keys and another not easily seen pocket on top of that fits my bberry snugly. I ordered one for my husband b/c the olive appeared 'manly'. I'm getting another for myself and alll my 'junk'.