US Sizes 3.5 – 13.5; 7 step model; 2 tone mesh; Anti-fungal properties; Enhanced cushioning and breathability; ‘Poron™’ at the front and heel for excellent shock absorbing qualities; Ideal for the more robust / heavier person; Ideal for people with Diabetes, Arthritis or individuals with high arches; Extra pressure-reducing layer; Additional stimulation to massage tense foot muscles; Plugs 6 and 7 are designed to withstand a heavier footfall; Proactive and reactive, providing relief from foot, heel, ankle, leg, knee, hip, back, neck and shoulder pain; It comes in full length.