BO47 Barbour Glasses. The BO47 is a soft and sympathetic frame, with its sweeping browline and evenly distributed weight. Visually this frame is wonderfully balanced and offers a wide field of vision for the wearer. The wider fitted arms have indents moulded into the shape, this is for a secure comfortable fit that will enable them to be worn all day without irritation or discomfort. The wider plastic nose bridge gives a greater weight distribution again allowing for a more weightless feel and ultimate comfort. All Barbour glasses from Spex4less are supplied with case, cleaning cloth, 12 months frame warranty and our usual 100% satisfaction guarantee.