Jim Marson, senior product developer, will be retiring from Therm-a-Rest at the end of the year. He was hired in 1987 by Cascade Designs, the Seattle-based camping-gear company that owns the brand. Before his most recent post, Marson served as engineering technician, engineering designer, product development specialist and product developer (R&D). His tenure was notable for the launch of the NeoAir and Z-lite mattresses.