The Matrix EMT pant may very well be the more comfortable, durable pant you will ever wear. It features the revolutionary EGC (Ergonomic Garment Construction) system, which provides comfort, mobility and extended wearlife. This system includes: heavy-duty hidden elastic, expanding 2-4" as needed * a "Stretch & Support" breathable waistband with mini SnugTex * a one piece diamond shaped gusset in the crotch for multi-directional stretch and comfort. These pants are also made with a fabric that redefines fabric performance. The poly/cotton twill blend, enhanced by H2Tech,H2UltraDye & H2Flex from Swift Galey, is amazing. The H2Tech provides superior hydrophobic resistance to water, oil & other liquids on the surface. Inside, it wicks moisture away. H2UltraDye provides superior color depth & retention v. conventional or va dyeing processes. The H2Flex enhances comfort with engineered stretch,for ease of motion & shape retention. Th,se pant even features a UV rating of 4