Layering jackets and sweaters has long been the standard approach to staying warm. However, this method has clear drawbacks. Heavy coats trap heat unevenly, causing overheating indoors and inadequate warmth outdoors. They’re cumbersome to carry, limit flexibility, and can feel suffocating during active movement. More importantly, Solana Gear Heated Vest traditional jackets can’t respond to changing temperatures throughout the day. Once you’re cold, you stay cold — unless you add or remove layers constantly. http://solanagear.ca/