The Under Armour Base 4.0 Leggings were built to battle nature's coldest and most brutal conditions. Their patented negative grid fabric traps heat in tiny pockets to keep you ridiculously warm without feeling weighed down. They wick away excess moisture in their unique grid channels keeping you dry and comfortable no matter how hard you practice your sport. You also move with unrestricted ease thanks to the Under Armour 4 way stretch fabric. These Base 4.0 Leggings deliver more warmth so you can handle the unexpected cold weather changes. Flatlock Seams for Comfort and Chafe Elimination, Ergonomic Seam Placement, ArmourBlock, Fit: Tight, Warranty: Lifetime, Wind Protection: No, Material: Synthetic, Weight: Heavy, Type: Bottom, Wicking Properties: No, Water Resistant: No, Recommended Use: Fitness, Antimicrobial: No, Anti Odor: Yes, Quick Drying: Yes, Moisture Wicking: Yes, Model Year: 2019, Product ID: 432618, Model Number: 1281110-001 M, GTIN: 0889819722620