Size S [Applicable to sizes 34-35] For thick-soled footwear, go up one size and for boots, go up two sizes.; Size M [Applicable to sizes 36-37] For thick-soled footwear, go up one size and for boots, go up two sizes.; Size L [Applicable to sizes 38-40] For thick-soled footwear, go up one size and for boots, go up two sizes.; XL size [applicable to sizes 41-42] For thick-soled footwear, go up one size and for boots, go up two sizes.; XXL [Applicable to sizes 43-44] One size up for thick-soled footwear, two sizes up for boots.; XXXL code [applicable to sizes 45-46] One size up for thick-soled footwear, two sizes up for boots.