Cold days call for insulation. What makes the Men's L Insulation GORE-TEX jacket even more powerful is that it's wrapped in fully waterproof and highly breathable GORE-TEX 2L. Low profile, low-loft insulation balances warmth and mobility and ample venting designed to prevent overheating. Complete with Zip Tech® jacket to pant interface to seal out snow, hidden toggle cinch hood with peripheral adjuster and safety whistle zip pull.