If you are looking for a lightweight jacket that is still 100% waterproof, then the Manchester Rain Jacket is the perfect solution. This coat features Helly Tech Protection, all seams are fully taped to insure that no water get through and there is cape venting in the back for ventilation without a risk of getting wet. Helly Tech Protection. Waterproof, windproof and breathable. Fully taped construction. YKK zippers. Front storm flap. Two hand pockets. Opening in back for ventilation. Main fabric: 100% Polyester. Lining: 100% Polyester.