Serengeti Clip-On Polarized Sunglasses vs Cocoons Polarized Clip-On Sunglasses

Buy the Serengeti clip-on if you already own Serengeti Nelson frames and want a mineral-glass lens with the brand's contrast tint. Buy the Cocoons if you want a clip-on that fits many frames, blocks more light and carries a lifetime warranty. The Serengeti is a narrow accessory tied to one frame family; the Cocoons is a general-purpose clip-on with a sturdier alloy build and a protective case. Owners of both tend to praise the optics and note that clip-ons add weight and bulk to the glasses.

• Choose the Serengeti clip-on if you wear Serengeti Nelson frames and want a mineral polarized lens matched to them.
• Choose the Cocoons clip-on if you want one clip-on for everyday bright light across several pairs of glasses, backed by a lifetime warranty.