The Trapper Jacket is unique. It is the most playable insulated jacket on the market due to the 4-way stretch properties of the fabric. Made with Zamza Light, a lightweight proprietary Japanese fabric, the Trapper is also extremely water-resistant and windproof. The insulation in this puff jacket is 37.5, a patented technology which works to maintain an ideal core temperature, enabling you to perform better, longer. Trapper is perfect for golfing on cooler, blustery days.