Made of 100%polyester,these materials are thick and comfortable,keep you warm in the fall and winter.1/2 zip up collar sweatshirt, the zipper works smoothly, This pullover sweatshirt is suitable for suitable for casual, daily wear, office, playing ball, party, school, running, sport, gym, dancing, skating, hiking, biking, yoga, spring, fall and winter. It's also a good gift to your friend or family.Qty for 500PCS and over by ocean.