Designed with baffles contoured to fit your body, this streamlined jacket offers lightweight, highly compressible ThermoBall® powered by PrimaLoft® synthetic insulation. Excellent at retaining loft and warmth even when wet, the ThermoBall® Trekker Jacket will keep you warmer regardless of the conditions. 15D 33 g/m2 10 The North Face - Men's ThermoBall™ Trekker Jacket