Durable and spray resistant shirt from an innovative poly-cotton ripstop fabric. Featuring additional TekWax cotton panelling from British Millerain, the leading waxed cotton specialist in the world. Designed for the effortless transition from urban to outdoor. The HeriTech Sylvan Shirt is modelled on a classic fit overshirt, designed to be an understated statement. Featuring underarm vents for thermal regulation and a hidden front placket with double slot buttons, taped and bartacked for maximum durability. Complete with an embroidered ThruDark insignia to finish. With six generations of textile innovation behind it, British Millerain is not just the original, but the global leader in waxed cotton. Lancashire born, the company produced its first patented rainproof finish in 1894. After more than a century of refinement, research and redevelopment, British Millerain’s TekWax cotton comes to ThruDark. The reason waxed cotton works so well as a waterproof barrier is that its hollow fibres are able to be filled up with, and hold onto, wax, rendering the fibres watertight. However, its ultra-dry finish sets British Millerain’s TekWax cotton apart. This gives your ThruDark garment all the functional performance of a classic waxed piece without the dampened feel of traditional waxed cotton.