"Marcos" my words: the Michael Antonio Studio Marcos Black Studded Ankle Boots are as cool as boots get! Matte vegan leather booties have a slightly pointed cap-toe, with an edgy panel of silver pyramid studs that stretches from vamp to ankle. 5" zipper at outstep. 4.5" shaft has an 11.25" circumference at opening. 3" chunky layered heel. Cushioned insole. Non-skid rubber sole. Available in whole and half sizes. Fit is true to size (round up if you're between sizes). Measurements are for a size 6. All vegan friendly, man made materials.