Here's what other sites are saying:
TH-4 Waterproof/Breathable Fabric-Th-4 is a high tech polyurethane coating that contains microporous and vapor permeable layers.
Throw on the Red Ledge Thunderlight rain pants and head outside! Kids will love the great protection these pants provide—you'll love the price. Ripstop nylon offers durability and abrasion resistance for years of use and features a waterproof breathable coating for protection in wet weather. Elastic waist with drawcord secures the fit. Zippered back pocket keeps small essentials secure. Cuffs feature snap adjustments to ensure a proper fit around footwear. Includes a 9 x 3 in. mesh stuff sack. Special buy.