The softest, quietest, stretchiest, lightest waterproof jacket we have ever seen. Don't let the slimming good looks of the reversible Gemini Jacket fool you; this jacket is so technologically advanced that it will become the only jacket you grab every time you play golf. Worn with the dark-side facing out, the waterproof jacket absorbs 99% of ambient heat and pushes it into the jacket to keep you warm. Flip it inside out and the light side reflects 49% of ambient heat while the black side pulls heat from your body to cool you down. The Gemini jacket provides up to a 10.2°F / 6°C temperature differential without the use of electronics.