The Flexair Pro Fire Alpha Pants™ are a real game changer. Featuring insulation with adaptable breathability, the need to shed layers on the move is virtually eliminated. Super-light, and boasting moisture-wicking fabric to keep you dry, plus DWR finish to shed moisture, dirt, and debris, these pants move well and climb as efficiently as they descend. Polartec® Alpha® insulation features adaptable breathability that helps eliminate the need to shed or add layers while on the move Proven race-ratchet closure provides secure fit and quick on-the-fly adjustments Secure zip hand pockets Tapered lower leg reduces snag and drag TruDri® fabrics move sweat away from body to keep you dry DWR finish sheds moisture, dirt, and debris Shell: 88% nylon / 12% spandex Insulation: Polartec® Alpha™ 100% polyester Inseam: 31.75"