Hot Chillys Bi-Ply Bottom Kids Black X-Small – Warm Thermal Leggings for KidsPepper Bi Ply Is A Midweight Soft Jersey Knit With A Double Layer Of Back To Back Mtf Micro Spun Polyester That Provides Exceptional Thermal Properties And Added Moisture Management. This Fabrics Special Two Layer Knit Traps Air Creating Warmth And Comfort While The Flat Seam Construction Allows For Seam Strength Without Abrasion. The Hot Chillys Bi Ply Bottom Kids in Black X Small offers exceptional warmth and comfort designed specifically for active