550 mL The Feed Zen Sloth Yoga Running Cycling Training Water Bottle - Black - Designed for running and cycling athletes - The bottle features a high-flow rate, low-resistance valve, making it easy to hydrate with a quick sip or squeeze - Oversized cap for easy filling (including ice) - Standard dimensions to fit most cages - The 550ml / 18.6 fl oz bottle weighs 54 grams - Italian-designed and produced in Croatia