I know petamall.com has alot of non leather products and I am pretty sure they have non-leather gloves. There is a website for a store in Iowa called Heartland products and they sell all sorts of non -leather products including baseball and softball gloves for about 40-45$ including shipping. Their website is
http://www.trvnet.net/~hrtlndp/ and there you can call the number and place your order over the phone or print out an order form from the web page. I think I would probably call. You could probably find more through google search. Good luck!