These wonderful project bags are made especially for Wool & Waves by Amanda of Dubbele Dutch in Calgary, AB. 

They have a poly/cotton twill liner with a large pocket made with the same outer fabric and are stabilized with a poly batting. The roll top closure is nylon webbing and a plastic buckle.

The Dimensions are 14" tall, 12" wide, and 3" box bottom. When rolled down, it is 12" tall, and the beauty of the roll top is that it doubles as a handle!

Price is for One Bag, Purchase the matching 6" DPN holder here.