Costa Del Mar | C-Mono Retainer Blue Water Candy The WTF Grunt'R™ uses Inflection

The WTF Grunt'R™ uses Inflection Chamber Technology to mimic the natural inflection in sounds made my rutting deer

Don't miss another opportunity to reel in a big catch

Town & Country called it "the beach bag you've always dreamed of

an automatic purge valve to equalize air pressure

A drawcord waist allows for an adjustable fit

Costa Del Mar | C-Mono Retainer Blue Water Candy The WTF Grunt'R™ uses InflectionKeep your Costa sunglasses secure with the C Mono Retainer. Crafted from high tenacity monofilament, this sleek retainer is ultra lightweight and virtually invisible. Flat, low profile temple attachments ensure a comfortable fit without bulk. Measures 20" end to end for a perfect fit. Essential protection for your investment.