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GoLite introduced their improved Wisp HP fabric in the spring 2005 Wisp wind shirt. Wisp HP is quite different from the previous Wisp fabric, which was a 15 x 40 denier ripstop nylon with DWR on the outside and an acrylic coating on the inside. The new fabric is a 22-denier ripstop polyester taffeta with DWR on the outside and no acrylic coating on the inside. GoLite claims the new fabric is 30% more breathable than the previous Wisp fabric.
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