Killtec Yuro Jacket - Boys': Functional Jacket With Hood and Snowcatcher. Killtec offers several styles that can be found in boys ski jackets. Material: Full Dull Polyester Melange, 100% Polyester, breathable PU lamination, water column 8,000mm, moisture vapor permeability 3,000g/m/24h, all seams taped, 100% waterproof. Material Mix: Full Dull Polyester Melange, 100% Polyester, breathable PU lamination, water column 8,000mm, moisture vapour permeability 3,000g/m/24h/2-Way-Mechanical Stretch, 100% Polyester, breathable PU lamination, water column 8,000mm, moisture vapour permeability 3,000g/m/24h, all seams taped, 100% waterproof. Lining Mix: Polyester Taffeta, 100% Polyester/Polyester Tricot, 100% Polyester/Metallic Mesh, 53% Polyamide, 47% Polyester