Intuitive: The lid of the shell has a circular cut-out to cue whether all pieces are in place and to let you know if you forgot a piece.

Electricity Free Cooling: A vacuum-insulated stainless steel shell + cooling puck that maximize cooling speed and duration (16+ hours).

Temperature Monitoring: A thermo-lid to monitor temperature. Simply double-tap or shake unit to reveal the temperature.

Pump Compatibility: Light BPA-free inner bottle that holds 11 ounces of milk and is compatible with industry leading pumps.