Pi Day Shirts: SIZE: S=US(4-6), M=US(8-10), L=US(12-14), XL=US(16), XXL=US(18-20). Made of breathable, stretchy fabric, this Pi Day Shirt is super soft — feels like a gentle hug. Features funny Pi graphic, relaxed fit — essential for math lovers. Math Teacher Shirt: Great gift for mom, grandma, sisters, friends, teachers — perfect for math lovers, Pi Day, teacher appreciation. Unique, delightful items for those passionate about math, teaching, and science. 3.14 Pie T shirt:Easy to match with leggings, pants, shorts, skirts, jeans, canvas shoes, short boots. Creates casual, cute looks for school, work, weekends, shopping trips — ideal for math teacher outfits, everyday fashion. Inspirational Tshirt: Suitable for school, work, outdoor activities, shopping, street style, holidays, Pi Day celebrations, teacher events. Wear for daily activities — get ready for tons of compliments on this math-themed tee. Preschool Teacher Tee: This Pi Day T-shirt is recommended to be washed in cold water. It can be hand-washed or machine-washed. Hang to dry. This will help keep the vibrant printed patterns looking new for a long time.