Altamont Capital says it has made an investment in Huf Worldwide, the American brand of skate and street shoes founded in 2002 by a professional skater, Keith Hufnagel. It has also announced a partnership with Brixton, a California lifestyle apparel brand founded in 2004. Altamont is the San Francisco-based investment fund that made a failed bid for Billabong International a couple of years ago and then took over its Dakine business in the summer of 2013. One of its operating partners is Scott Olivet, a former president of Oakley.