Joules Women's Field Welly Rain Boot, Olive, 7 M US 100% Rubber Imported Rubber sole Shaft measures approximately 14.5" from arch Heel measures approximately 1.25" Platform measures approximately 0.5 inches Boot opening measures approximately 16" around Printed rain boot featuring logoed shaft and expanding inset with adjustable buckle strap Pull-on loop at back shaft Lugged outsole The boots might have white wax film may appear on the surface of the rubber boots and that it can be wiped off with a damp cloth. This "blooming" effect is not a defect. Blooming is caused when the boots are exposed to extreme temperatures or temperature swings and the wax helps prevent the rubber from weathering.