New 2025 Model BURTLE Inner Pants 4077 Hot Fitte Black, Size L, Set of 2 Solid Black x 2 Other sizes and colors available → These are BURTLE's cold-weather inner pants. Made with warm, brushed-back material! 4-way stretch knit material provides a comfortable fit that moves with you! Sweat-wicking and quick-drying processing keeps you dry and comfortable!