Our problem is to make mittens that will keeps warm, but is still inexpensive.They also can't be too thick.We will be able to use wool, nylon, denim, and fleece.
Design I am going to use fleece and nylon. Fleece is soft and warm, and nylon is water resistant. There will be 2 layers of fleece and 1 layer of nylon.
I chose these layers because of their characteristics. The 2 layers of fleece will provide lots of warmth, and the 1 layer of nylon will be waterproof.