Insulated Frozen Breast Milk Shipper Boxes

Protect Every Drop of Human Milk Trusted Protection: Temperature-controlled insulated frozen breast milk shipper boxes designed for traveling parents, NICU deliveries, surrogacy journeys, and milk donors. Versatile Travel: Ideal for overnight shipping, carry-on luggage, or checked baggage. Total Peace of Mind: Keep your milk frozen and secure from door to crib. Convenient: No box prep needed, simply load the box with your frozen milk as described below when you're ready to ship. Eco-Friendly Construction: Features a moisture-resistant, heavy-duty 100% recyclable outer cardboard carton. Insulated Frozen Milk Shipper Boxes Include: One Insulated Frozen Milk Shipper Box Stickers or Tape to Seal the Box Plastic Zip Lock Bags Filler Paper Milk Storage Bags Instructions How to Reach the Full 96-Hour Mark Under standard ambient travel condition (68°F to 77°F/20°C to 25°C), a properly packed shipper will keep breast milk frozen for 72 to 96 hours (3 to 4 full days) without dry ice. Start 100% Frozen Solid: The milk must be fully frozen in a sub-zero deep freezer before packing. The cooler preserves existing thermal mass; it cannot freeze soft or partially thawed milk. Eliminate All Dead Air Space: Air pockets cause milk to thaw rapidly. The cooler must be filled completely to the top. If you aren't packing enough milk to fill the payload space, fill every remaining gap with frozen water bags or tightly crumpled paper so it forms a single, solid "block of ice." Keep the Lid Sealed: Do not open the box during travel to "check" the milk. Opening the box breaks the internal thermal seal and lets warm ambient air inside. External Factors That Reduce Thermal Hold Time Extreme Heat: If the box is left in a hot car trunk, on a sunny porch, or on an airport tarmac in 90°F+ heat, maximum frozen duration drops to around 48 to 60 hours. Partial Loads: A box that is only half full of frozen milk (without filler ice packs) will warm twice as fast as a completely full box. Large Shipper Outer Dimensions: 12.1"x 7.9"x 9.8" Inner Dimensions: 8.5"x 4.7"x 6.1" Volume: ~ 4 Liters (235 cu. in.) Empty Weight: 4.3 lbs Holds Days 3.5 to 4 Days of Milk: ~25–30 oz/day; holds ~100+ oz to total flat-frozen Cooling Duration: 72 to 96 hours (3 to 4 days) when packed strictly with flat-frozen milk and ice packs (no dry ice). X-Large Shipper Outer Dimensions: 12.3" x 11.5" x 11.7" Inner Dimensions: 9.3" x 8.5" x 7.1" Volume: 10.4 Liters (815 cu. in.) Empty Weight: 5.7 lbs Holds 8 to 10 Days of Milk: ~25–30 oz/day; holds ~250 oz total flat-frozen Cooling Duration: 72 to 96 hours (3 to 4 days) when packed strictly with flat-frozen milk and ice packs (no dry ice). Note: Return shipping not included. Empty Insulated Frozen Milk Shipper Boxes are shipped with standard UPS Ground shipping. If they need to arrive by a certain date, are being shipped to a hotel, are an international shipment, or if expedited shipping is required please add a note to your order when you checkout, or contact us. Contact details will be emailed to you upon placing your order. For prepaid company orders, please use your work email address. If you are using a discount code, you confirm that you are authorized to do so. Made in USA