Our new Arnold trainer has a unique LACTAE HEVEA sole. Farmed in a completely sustainable, ecological way, the Heavea trees are tapped for their milk, which is then refined to produce a natural, slightly translucent gum sole – tiny bubbles of air are formed in the process producing a super flexible ‘walking on air’ comfort. The retro 1970s style upper is made from a super soft grey calf suede with a fine nap and is lined in flexible calf leather, reinforcing the upper, but keeping it supple and as comfortable as a slipper. The heel counter is trimmed with calf leather with a retro stripe on the back counter.