These are undeniably shades to trail-blaze in. The ‘Iron Bound’ sunnies take an attractive crystal navy blue frame and silver mirror lenses and amp up the appeal with polarized protection, snap-screw hinges, and the incredible durability of TR90 thermoplastic frame construction. The result is a pair of sunglasses that will thrive during even your most passionate pursuits. This is great style for the great outdoors—uncompromising craftsmanship destined for adventure. //