Features:Durable Material: Made of polyester material these thermal base layers are light for layering under other clothes. Non abrasion spandex fabric with excellent elasticity and durability for maximum mobility.Special Design: It can quickly absorb sweat when sweating and keep the body dry.Great Performance in warm or cool weather. Sweat and Moisture can be pulled away from skin very quickly; Enable sweat easy for air-dry to prevent clothes sticking to the body.Useful Function: The boy's thermal underwear set are supple material inside which can ensure warmth comfort lightness so that your kids will not feel restrained during activities.Fine Workmanship: The long johns is designed with elastic waistband which is not easy to fall off and is easy to wear.Meaningful Tool: Boys' thermal underwear set are made with supple polyester fabric to give the warmth during the cold weather seasons.Specification:Color: Gray/Green/Pink/Blue.Material: Polyester.Size Table:Size Shirt Length(cm) Chest(cm) Sleeve(cm) Waist(cm) Pants Length(cm)140 52 65 51 50 75Note:There might be a few color distortions due to different computer resolutions.There might be a slight error due to different hand measurements. includes: 1*Thermal Underwear1* Thermal Pants"