TOPO DESIGNS Mountain Boulder Pant in Black. Size L, M, S. 90% nylon 10% spandex. Made in Vietnam. Machine wash. Pull-on styling with zip fly and elastic waistband with interior drawstring tie closure. 4-pocket styling. Lightweight ripstop fabric. 17 at the knee narrows to 14 at the leg opening. TOPR-MP2. 2123010019. Topo Designs is based around the idea of simplicity and a sense of connectedness. The brand wants to ensure an undisturbed outdoor experience by creating things that work well, but aren?t complicated or overshadowed by the latest technology. They locally produce high quality gear and clothing so people can feel a bigger sense of community every time they use one of their products.