Types and Variations of Thermal Long Underwear at Walmart Type Material Fit Warmth Level Best For Price Range Men’s Thermal Long Johns Polyester/Spandex Slim/Fitted High Cold weather outdoor $15 – $30 Women’s Thermal Leggings Cotton/Modal Regular/Curvy Medium Layering under clothes $20 – $35 Unisex Base Layer Merino Wool Athletic Very High Extreme cold conditions $40 […]
