ZAKPRO Rider's Thrist Cycling Water Bottles - (Black And Red Combo)Durable & Drop Tested: Made from soft food grade PP5 material, built to withstand fall impact. Easy to Clean: All parts are detachable for thorough cleaning. Sipper Cap: Squeeze and sip design with lockable cap for leak proof use during rides. Optimized Fit: 75mm circumference fits most standard bottle cages securely. Easy Squeeze: Soft material ensures effortless squeezing and smooth water flow. Versatile Use: Suitable for water, juice, milk;