ZERO Ready To Drink, 20 oz, Wide Mouth Bottle, Grape no checkout Designed for root and hot Designed for root and hot pass weld cleaning in pipe joining application Larger surface area means more air flows in and out of the mask without a valve Durable Dura Mesh® shell prevents collapsing from heat and humidity FlexFit® design fits the contours of the face and mouth for comfortable extended wear Soft foam nose cushion and pinch free nose bridge Designed to restore important mineral salts and fluids lost through dehydration physical exertion and heat stress Half the sodium and more potassium compared to other electrolyte replacement beverages No sugar and no calories