Description of Camelbak Insulated Stainless Better Bottle .5L The CamelBak® Better Bottle™ goes stainless. With the Big Bite Valve™ in our revolutionary cap, CamelBak has re-energized the reusable bottle category, creating the ultimate spill-proof companion. Available in .5L Insulated Stainless and .75L Stainless. Features: 16 oz (.5L L) Made from medical-grade stainless steel, with no inner liners or plastic coatings that aluminum bottles require. STAINLESS: Single-walled .75L Bottles available in an assortment of colorful styles Also available in INSULATED STAINLESS: Micro-welded, double-wall .5L Insulated Stainless bottles feature vacuum insulation to keep beverages cool for hours. Naturally BPA-Free, stain resistant and taste-free