pull-on closure *-*MATERIAL: Lightweight and breathable, super cool sleepwear for summer! Made of 100% soft cotton knit material, four-way stretchy, keep you cool and comfortable all day and night long. *-*TOPS: Short sleeves, classic crew neck design, the hem droops well, durable and not easily deformed. Featuring this pajama T-shirt easy to put on off and just offer you a convenient secure lounge wear in summer. *-*SHORTS: Elastic waistband with drawstring for a perfect fit, 3D draping fits human body structure, loose leg opening design liberates legs and make you feel comfortable in daily dress or when you sleep. *-*MULTIPLE USES: Two-piece sleepwear: shirt & shorts. Great for sleepwear, lounge wear, all day long, exercise, fitness, running, jogging, walking etc. *-*WARM TIPS: There are four colors to choose. You can buy the pajamas in sets or separately as you like. Pajama sets are a warm familiar product that is always appreciated as a gift, which is perfect for your father, husband, brother or friends.