Some places to find mountain man buckskin clothing include CrazyCrow.com, Gareneker.com and SunriseTradingPost.com, as of 2015. Clothing specifically for mountain man era reenactment is found at CrazyCow.com. It offers finished clothing pieces, as well as kits to make mountain man clothing and accessories.
Men's frontier buckskin clothing made using traditional methods and sewn by hand is found at Gareneker.com. It offers coats, leggings, pants, shirts and breechcloths in Eastern, Western, and Native American styling.
Sunrise Trading Post designs and creates buckskin leather pants, leggings and shirts. These items are handmade and can be purchased at SunriseTradingPost.com. This website also offers buckskin clothing for women, including dresses, skirts and tops.