A vacuum-insulated stainless steel shell and cooling puck (“rechargeable” in the freezer overnight) that maximize cooling speed and duration. 16+ hours of cooling without electricity.
The lid of the shell has a circular cut-out to cue whether all pieces are properly in place and to let you know if you forgot a piece.
A thermo-lid to monitor temperature. Simply double-tap to reveal the temperature.
Light BPA-free inner plastic bottle that holds 10 ounces of milk and is compatible with industry leading pumps. Adapter is provided with purchase for wide-mouth pumps.