Simms: Montana Techwool Zip Top, Boulder, Medium

The Simms Techwool Zip-Top is the ideal layering piece for fly fishing when temperatures drop. Made with wool produced in Montana, the Techwool Zip-Top's 21-micron fibers retain heat, naturally wick moisture and retain heat even when wet. Comfort is added with a fleece lined collar and flatrock stiching. A chest pocket easily secures personal items. Modern fibers have yet to top the insulating properties of wool and the Techwool Zip-Top from Simms beats back the cold so you can stay on the water.