Size:LG (14-16 Big Kid) Shirt: Made with warm and moisture wicking fabric, the L.L.Bean™ Wicked Midweight Underwear is a perfect base layer for all outdoor activities. SKU: #9604155 Round neck with full-length sleeves. Thumb holes at the end of the sleeves prevent the sleeve from riding up. Pull-on closure. 100% polyester fabric construction. Pants: Experience exceptional warmth, no matter how cold winter gets, in the L.L.Bean™ Wicked Warm Midweight Underwear Bottoms. SKU: #9604376 Midweight underwear keeps heat in and moisture out. Covered elastic waistband won't bind, keeping you comfortable. Self-fabric cuffs help keep pant legs in place during play. 100% polyester.