My teachers have really been drilling small talk in classes and really like the idea of having cards for the students to use and walk around with to help them speak.
So these are being used for helping with the being a shop clerk and customer. I think it's Unit 6 in NH2 where they learn how to ask for something smaller/larger/cheaper. Although you could use these to practice any kind of shopping using clothes, prices and some sizes.
There are 4 different styles each of sweaters, pants, shirts, jackets, shoes, socks, and underwear.