SNHNY Water Bottles (2-Pack) for Hydration Belt : BPA-Free & Leak-Proof This package includes two 6oz or 180ml water bottles Perfect fit for SNHNY Hydration Belt (Medium - 6oz) Leak-proof Caps BPA-free hydration solution Money Back Guarantee: If you are not 100% satisfied with Water Bottles then simply return your set to Amazon for a full refund, no questions asked!