The original Yarn Pop! The Single is great for smaller projects you want to carry in your purse or computer bag. The perfect size for socks, hats, scarves and wristlets. The Single is a go-to bag for those small projects you like to have with you while on-the-go. Canvas on the outside and soft cotton on the inside, this bag will keep yarn and small projects safe from harm. The industrial YKK zipper keeps things secure and the single grommet gives access to the yarn while the bag is shut.