With polarized lenses and top-tier UV protection

named for the intense training zone

Nigel features a classic rectangular shape with a transparent olive green frame

Lock in the NYC state of mind with our latest style from our Doc Robbins Collection: NYC

These are the Rx prescription version of our Doc Robbins Arizona sunglasses

Colorado Bulldog XL Lens Upgrades:Standard With polarized lenses and top-tierThese are the Rx prescription version of the Doc Robins XL Colorado Bulldog XL sunglasses. Choose from standard clear lenses or from our wide selection of prescription sunglasses lenses. Tailor these glasses to your liking with our many lens color options. Colorado Bulldog XL brings a cooler edge to the Doc Robbins XL collection. The glossy black rectangular frame fades seamlessly to clear, offering a unique look that still works for everyday wear.