From the product description, check product page for current description, price and availability:

• 64oz insulated bottle is perfect for keeping your drinks cold while on the go. Great for outdoor events, camping, parties, etc.
• Double wall construction keeps your hot drinks hot and cold drinks cold for an extended period of time
• The BPA-free cap provides a high quality seal to keep your carbonated beverages from going flat quickly
• 18/8 stainless steel provides durability and outer powder coating prevents slipping
• Thermal insulation barrier avoids sweating on the bottle
• 304/304, 0.6mm/0.5mm stainless, PP lid, water expanding inner wall(with seam)
• Black powder coating
• Finish types: Enamel