GREEN PLANET BOTTLE DURABLE STAINLESS-STEEL ECO-FRIENDLY BPA-FREE OUR BOTTLES ARE MADE OF STAINLESS-STEEL THAT MEANS: TOXIN-FREE (NO HARMFUL BPA'S) DURABLE NON-LEACHING (NO FUNNY OR METALLIC FLAVORS) EASY TO CLEAN WHY SHOULD I CARE ABOUT BPA? BISPHENOL A (BPA) IS A POLYMER ADDITIVE USED IN MANUFACTURING MANY OF THE POPULAR PLASTIC WATER-BOTTLES. THE PROBLEM IS THAT THIS CHEMICAL (WHICH SLOWLY LEACHES INTO YOUR WATER) MIMICS ESTROGEN AND CAN INDUCE HORMONAL RESPONSES LINKED TO BREAST CANCER.