Simms' Freestone Z Bootfoot Waders provide a perfect, watertight set up for cold water wading and fly fishing. The Toray QuadraLam waterproofing has a great track record for durability while the TIZIP waterproof front zipper makes it easier to take a streamside whiz after our morning coffee or an exciting fight with runaway rainbow. With its built-in rubber boots, this version of the popular Freestone series keeps gravel and grime from sneaking into our feet and holds in more of our body heat-a big plus in winter.