A:Before Simms, fishing waders were like big, clammy rubber gloves. Then the Bozeman, Montana company partnered with W.L. Gore to create breathable waders: waterproof pants that stay dry on the inside after a long day of fishing. The latest version, the Headwaters, are constructed from a three-layer Gore-Tex fabric with articulated legs, reinforced seams, and abrasion-resistant gravel guards at the foot. Feeling chilly? Use the large hand warmer pocket at your chest and pull the shock cord to cinch the fabric and keep heat in. Gender-specific versions keep the fit both roomy and tailored.