B-Low the Belt Milla Belt in Black. Size M, S, XS. Genuine leather belt. Buckle closure. Measures approx 1.5 H. BLOW-WB116. BT1640. Founded in 2002, B-Low the Belt grew out of a passion for trend and the feeling that belts had an ability to instantly elevate an outfit. With a focus on creating both foundational and fashion-forward pieces, B-Low the Belt has become synonymous with quality materials and thoughtful, on-trend details.