The Adiri Warming Cap is a BPA-free plastic cover designed exclusively for Adiri Natural Nurser baby bottles which seals the bottom of the bottle, making it water-tight. Once the Adiri Warming Cap is placed snugly over the Adiri Natural Nurser's Twist On Cap, covering its Petal vent, the bottle may be submerged in water or used with a standard electric or steam bottle warmer.

Adiri Warming Caps are:

• 100% free of BPA and phthalates
• Dishwasher safe, bottle-warmer safe
• Sold in multi-colored packs of 3 (2 orange, 1 blue)
• One size: all Adiri Warming Caps fit all Adiri Natural Nurser bottles