Dog Sunglasses Sun Glasses Goggles Eye Wear Protection Fashion Adjustable Head And Chin Straps, For Small And Medium Pet Doggles are more than sunglasses, they are goggles for dogs! Modeled after sports goggles they protect your pet's eyes from foreign objects, wind and UV light. Fun, yet functional design - total protection against UV, wind, water, & debris. Wider nose bridge, deeper lens cup, & sturdier frames than other brands. Size: Adjustable head and chin straps,For small and medium pet. For neck circumference between 20-70cm pet+Head elastic band minimum 20cm maximum 38cm, no measuring tensile Note:Black one can not fold,other colors is foldable.