loisf

Thermore Ultra Thin 100% polyester is good if you want a flatter look.

lynnie

Boston, love your apple place mats. so cool looking

Patches1900

I've used many low loft cotton and blends (mostly left over from quilts) but also like the Thermore Ultra-thin poly as well - also great for coasters & mug-rugs.

Mkotch

I use leftover Warm & Natural batting, too, along with old blue jean scraps for the backs. Makes them sturdy and very washable.

coopah

Bosall. It comes preformed or you can buy it on a roll if you're lucky. Personally, I like the preformed as half the work is done. Doesn't shrink, lays flat, has a nice feel.

illinois

I have a pattern that recommends using flannel for batting in placemats. Go to a thrift store and see if you can find what I call a sheet blanket. It's a bit thicker than flannel on a bolt and you will have more than plenty for use. Stains won't be of any concern and it probably has been washed multiple times so won't shrink.

citruscountyquilter

I use Warm n Natural and don't pre-shrink. I've never had a problem with things tipping over etc.

rocklady

I use flannel that I get on sale at Walmart or Joanns. I try to get a light color so the print doesn't show through. Sometimes I'll use a double layer and put right sides together because of the print. Be sure to wash and pre-shrink flannel.

BettyGee

Like Nan, I use whatever batting I have that is the size I need. Don't like to cut into a queen size piece of batting to make four or six place mats.

tebill

I also use Pellon fusible fleece for placemats. It's so nice when they come out of the dryer flat!!!!!!!!!!!! A lady who works in a local quilt shop recommended it to me and I was skeptical. Now I use nothing but the Pellon for my placemats.