Comfort fit thyroid collar. Can be ordered with velcro or buckle closure. Available in our wide selection of nylons, ripstops and designer fabrics. Standard Protection: 0.5mm Pb Equivalency. In a hurry? In stock for immediate shipment: Royal Blue Nylon with velcro. Collar strap is 24" wide and the bib is 9" x 3.75". NOTE: For collars ordered with the optional quick release buckle and embroidery, the embroidery can be positioned on the bib only.