Our exclusive HydroBlock® Sport 10,000mm waterproof/breathable technology and our premium hydrophobic 220 gram insulation will protect him all day long. Our original 'I-Grow'™ Extended Wear System has built-in technology to increase sleeve length by 1 ½ inches. Design features include removable hood, reflective trims, integrated clips to retain mittens and gloves, adjustable powder skirt, and working compass.