Frogg Toggs Waterproof Bibs are 100% waterproof, 100% windproof, breathable and most of all, affordable. These rain bibs are constructed with a patented process of three layers of polypropylene material with a center layer of micro-porous film. Because the pores are 20,000 times smaller than a water droplet, moisture cannot penetrate. In addition, the patented seaming process eliminates needle holes and possible water entry. The Frogg Toggs Waterproof Bibs have been a staple of outdoor enthusiasts for years. These Waterproof Bibs have helped wearers endure hiking treks along the Appalachian Trail, downpours in the Cascade Mountains and 500-mile motorcycle rides. These bibs store easily in a tackle box, golf bag or motorcycle storage compartment.