Any of the Quilters Dream Battings with the exception of the lightest weight cotton, which is for hand quilting. Want it warm choose their wool. Warm and Cool? Choose their Dream Orient, a blend of silk, bamboo, Eucalyptus fiber & cotton. Traditional look cotton is also great, although I find the Deluxe weight great for wall hangings but too heavy for quilts. Never had any problems. I buy by the roll 122" wide. Smaller quilts I cut the width for clients. Left overs mine to keep to compensate for storage. Then for my things I can put leftovers together, great for charity quilts.