Picture this: Janis Joplin, The Grateful Dead and Jimi Hendrix traveling on a train for a couple of weeks. It actually happened in 1970 and was captured in the 2003 documentary “The Festival Express,” which Tracy Feith and Winnie Beattie used to dream up their Warm pre-fall collection of vintage-y, Sixties rock ‘n’ roll looks. “This first group specifically is meant to look really lived-in, in a very sexy, kind of acid-trippy rock ‘n’ roll way,” Beattie said. They mixed two vintage tapestries and played with the placement on an engineered peasant dress in two trippy-chic prints in purple and teal. Draped velvet suits, which has become a core item for Warm, came with reversible jackets worn over voile tops. The added value that comes with a reversible garment was also applied to bathing suits and quilted ikat jackets, all of them perfectly suited to transition from summer to fall.