For ages 3+ TempShield double-wall vacuum insulation keeps contents cold up to 24 hours Made with 18/8 pro-grade stainless steel for durability, pure taste and no flavor transfer Color Last powder coat is dishwasher safe and stays slip-free and colorful Perforated Bottle Boot for added protection Integrated name tag BPA-Free Dishwasher safe Not for use on a stove, in a microwave or freezer Product Code: W12BSWBB721