The SOTO WindMaster with 4Flex, ues SOTO’s Micro Regulator technology to enable a consistent output as temperatures drop and has been tested to demonstrate the same burning time at -5°C as at 20°C. This stove comes complete with the interchangeable 4Flex post support, which can easily be replaced with the SOTO Tri Flex (OD-1RX3) when being ultra-lightweight is preferred. With a shielded peizzo igniter the stove is easy to ignite and the concave burner head offers enhanced protection from the wind.