The Helen Wyman Signature MID Jacket is the latest version of our most versatile jacket. Updated with improvements to the fit and cut, the MID Jacket combines the light weight and fit of a long sleeve jersey with the protection of a softshell jacket. It's be celebrated as a "perfect fit" and a "wildly versatile piece" by professional riders. A true 3-season piece, the MID Jacket further enhanced by the pairing of Polartec(R) 's Power Shield Pro(R): their top of the line, ultra-breathable windproof and highly water resistant (5m) membrane softshell fabric with a DWR finished WinterFit Roubaix. Comfortable down to 30 F (-1 C), the MID takes its name from the days between Winter & Summer when comfort is needed against cool weather. Polartec(R) Power Shield(R) Pro combines never before seen levels of air permeability with durable hydrostatic resistance (water resistant to 5m) to keep you dry both from within and from out. Polartec(R) Power Shield(R) Pro fabrics feature a smooth, durable face for great abrasion resistance, and a polyester back for a high warmth-to-weight ratio. The functional layer in the middle enables the fabric to block 99% of the wind but allows enough air to circulate to keep you from overheating.