It looks more like a faux fur than terry cloth or fleece to me. Now they do have that fleece that is a long pile and super satiny soft. I personally don't use it because of the length of the pile...I'm afraid they will get caught or start pulling tufts of the fabric off...kind of like when they attack a toy and try shredding it. But that could also be what it is.
Like you said, I'd contact the seller and see what it's made of and how it's made...doesn't appear to be hidden seamed to me either but I may be wrong. The description she gives doens't make much sense to me. I don't know what "soft towel" material is????? And "no sew"....I can't figure out what part of it is "no sew"????