Walmart continues to offer the Ozark Trail 64-oz. Double Wall Stainless Steel Water Bottle in Silver for $7.88. Opt for in-store pickup to dodge the $5.99 shipping charge. That's the best deal now by $9 and tied with our mention from two weeks ago as the lowest price we've seen. It features 18/8 stainless steel construction, double wall vacuum insulation, a twist-off top, and wide mouth.