CamelBak Unisex Eddy Stainless Insulated 0.5L Bottle BPA-Free / Stainless Steel Imported Double-Wall vacuum insulation keeps water cool for hours Naturally 100% BPA-Free, taste-free stainless steel. No inner liners or plastic coatings Prevents your bottle from sweating. Redesigned cap and bite valve provide faster flow and enhanced durability CamelBak got your BakTM Lifetime guarantee