The 'Cleverer' Clog. A unisex, super-lightweight, modern clog. The creation of biomechanics researchers. The Toffeln Aktiv Klog takes Toffeln's clog heritage to a new level. It has taken what it knows works with regards to heel height and shape, ventilation, and slip resistance, and reapplied this knowledge using modern materials. It has then developed the science and ergonomics alongside biomechanics researchers at the University of Salford. The resulting product is Aktiv Klog. Removable insoles. Washable to 40 degrees celsius. Shock absorbing soles. Slip Resistant. Antistatic. CE Marked.