STRETCHY FABRIC: These socks are made from a blend of 98% polyester and 2% spandex, so the fabric will move and stretch with you as you exercise at the gym, take a stroll around town, or relax at home. SIZING: The crew socks from Harry Potter fit shoe sizes 8-13 ATHLETIC CREW: These athletic crew socks will keep your feet cozy and comfortable as you head to the gym for your workout routine or relax on a comfy couch at home watching your favorite Harry Potter films. MACHINE WASHABLE: For easy cleaning, toss these socks in a load of laundry with like colors and turn the machine to cold. Avoid using bleach to keep the designs bright and colorful.Tumble dry on low heat to protect the socks from shrinking. ARCH COMPRESSION: These socks feature cushioned foot beds and arch compression to provide extra support to your feet as you head to the gym for a workout, run errands around town, or relax on a cozy chair at home. Enroll in adventure with these Harry Potter socks. The socks come in yellow with gray stripes and feature a gray badger mascot to represent the Hogwarts House of Hufflepuff. Black letters along the arch of the foot spell out, "Hufflepuff." These socks make a great gift for fans of the Harry Potter series.