Size guide: Please order 1 size larger than you normally wear. Exposed lace waistband moves with you,unique and comfortableLightweight but warm,stretched and shapping,not bulky under clothesSnug fit ensures no bunching around your waistline and ankle and reduces heat lossGreat to wear at home or add an extra layer of warmth under your clothes.Machine Wash2-Pieces Thermal Set (Top & Bottom),long sleeve crewneck top and elastic waist legging