XLAB Aero TT SystemThe XLAB Aero TT V2 bottle saves up to 20 seconds in a 40 km TT Tri and has 25% less drag than round bottles. NEW! Stealth black bottle color. Match your black Torpedo Bottle or kit match your bike! Aero weenies rejoice with 50% less drag savings No launched bottles with tight 6lb grip (approx)XLAB Hi Grip Deep Pocket Carbon Cage Easy bottle handling with a deep grip groove Ideal 20oz (590ml) capacity for a gel water mix Spare AERO TT BOTTLE also