50mm chunky Chelsea boots 50mm chunky Chelsea boots from GANNI featuring white/black, calf leather, elasticated side panels, round toe, pull-tab at the heel, pull-tab at the tongue and chunky rubber sole. Conscious: Carbon-neutral certified – the carbon emissions produced have been calculated, reduced and the residual amount offset.. Imported Composition Outer: Calf Leather 100%, Rubber 100% Lining: Calf Leather 100% Sole: Rubber 100% SIZE & FIT Measurement CIRCUMFERENCE 10.2 in(26 cm) HEEL 2 in(5 cm) HEIGHT 7.5 in(19 cm) Sole height 1.4 in(3.5 cm)