Skechers Go Wlk Flex Sn53. These Skechers GO WALK FLEX Mens Trainers in Slate colour feature a breathable mesh upper, a comfortable textile lining, and a durable rubber sole. They have a secure lace-up fastening, a round toe shape, and a relaxed fit. Designed for comfort with memory foam insoles, these low-top trainers have a low heel height (2.5-4.9cm) and are ideal for fitness activities.