Roger's best-known contribution to fashion was his invention[1] or popularization[citation needed] of Capri pants.

He attended the Loretto School and read history at Balliol College, Oxford for a year; he then studied drawing at The Ruskin.

A story that may be apocryphal has him replying to a sergeant's question regarding approaching Germans, "When in doubt, powder heavily.

Capri pants, introduced by fashion designer Sonja de Lennart in 1948,[4] were popularized by her and Roger.

He favoured a neo-Edwardian look: four-buttoned jackets with broad shoulders, narrow waists, and long skirts.