Outdoor Apparel What makes a jacket warmer? February 2, 2026 by Mercier | Leave a Comment What makes a jacket warmer? The warmth of a jacket primarily depends on its insulation material, design, and weatherproof features. Understanding these elements can help you choose the best jacket for cold weather. How Does Insulation Material Affect Jacket Warmth? Insulation is a key factor in determining a jacket’s warmth. It traps heat and keeps […] Read more ยป