Built tough to stand up to all conditions, the Nike 4643 glasses are engineered with Flexon memory metal at the bridge, which means they can bend, flex or twist and the frames will return to shape without worry. It features a wide, square-fit design with adjustable nose pads and stay-put silicone grips.

Built tough to stand up to all conditions, the Nike 4643 glasses are engineered with Flexon memory metal at the bridge, which means they can bend, flex or twist and the frames will return to shape without worry. It features a wide, square-fit design with adjustable nose pads and stay-put silicone grips.

Built tough to stand up to all conditions, the Nike 4643 glasses are engineered with Flexon memory metal at the bridge, which means they can bend, flex or twist and the frames will return to shape without worry. It features a wide, square-fit design with adjustable nose pads and stay-put silicone grips.

Built tough to stand up to all conditions, the Nike 4643 glasses are engineered with Flexon memory metal at the bridge, which means they can bend, flex or twist and the frames will return to shape without worry. It features a wide, square-fit design with adjustable nose pads and stay-put silicone grips.

Built tough to stand up to all conditions, the Nike 4643 glasses are engineered with Flexon memory metal at the bridge, which means they can bend, flex or twist and the frames will return to shape without worry. It features a wide, square-fit design with adjustable nose pads and stay-put silicone grips.