Willow 360 and Pump Anywhere Case: What Fits and How to Pack It
By Willow: Wearable Breast Pump – Willow Pump | Published: 2026-11-02
Category: How-to Guides
Learn how to pack the Willow 360 Pump Anywhere Case for work, travel, and everyday pumping, including what fits, a step-by-step setup, and cleaning tips.
Quick answer
Pack the Willow 360 and Pump Anywhere Case by placing the pump and its containers in the main compartment first, then using the remaining space for wipes and a spare bra. Keep the case upright and avoid overfilling so the leak-proof latch can work as designed.
Why packing order matters for leak-proof pumping
The Willow 360 is designed to be leak-proof in any position thanks to its latch, but that protection depends on the pump and containers sitting securely. If you cram the case, you risk pressing on the latch or shifting the containers, which can lead to spills or a pump that doesn't sit right when you put it on.
The Pump Anywhere Case is sold with the Willow 360 as an all-in-one bundle, so it's sized for the pump and its parts rather than general luggage. Treat it as a dedicated pump case, not an overnight bag, and you'll find it easier to keep clean and ready to go.
What fits and what to leave out
The case holds the Willow 360 pump, its containers, and small accessories like wipes or a spare bra. It is not designed for a laptop, a full change of clothes, or a cooler with ice packs. If you need to keep milk cold, plan a separate small cooler rather than stuffing ice packs into the case.
Because the catalog does not list interior dimensions, check your own pump and container sizes against the case before relying on it for a full day out. If you use extra containers or a different flange size, test-pack at home first.
How to pack the Willow 360 Pump Anywhere Case step by step
- Clean and dry all parts: Wash the pump containers and flanges according to Willow's instructions and let them air-dry completely before packing. Common mistake: packing damp parts, which can cause odors or mildew in the case. Dry parts fully; a quick towel wipe is not enough.
- Place the pump body in the main compartment: Set the Willow 360 pump in the largest section so it sits flat and the latch is not pressed against other items. Checkpoint: the pump should not rock or bulge the case. The pump goes in first, not last.
- Add containers and flanges around the pump: Nest containers and flanges in the remaining space, keeping them upright if possible. Avoid stacking heavy items on top of the pump. Common mistake: forcing containers into tight corners, which can crack them. Leave a finger-width of space around the pump.
- Pack small accessories in pockets or pouches: Put wipes, a spare bra, and charging cables in separate pockets or a small pouch so they don't scratch the pump. Checkpoint: nothing loose should rattle against the pump body. Use a pouch for cables and wipes.
- Do a closed-case test: Close the case and turn it upside down gently. If you feel or hear shifting, repack. Common mistake: overstuffing, which can deform the case and put pressure on the latch. If it shifts, remove one item.
- Clean the case after each trip: Wipe the interior with a damp cloth and mild soap, then air-dry fully before closing. Do not put the case in a washing machine. Checkpoint: no milk residue or moisture left inside. Air-dry the case open, not closed.
Product facts
- Willow 360™ and Pump Anywhere Case: The Willow 360 and Pump Anywhere Case bundle includes the all-in-one breast pump that fits in your bra with patented no-spill technology. Because the pump is designed to stay in your bra, the case mainly needs to protect it in transit, not hold it during pumping.
Willow 360™ and Pump Anywhere Case - Willow 360™ and Pump Anywhere Case: The pump has a patent-pending latch that is leak-proof in any position. Packing the case upright and avoiding pressure on the latch helps maintain that leak-proof seal.
- Willow 360™ and Pump Anywhere Case: Smart sensors automatically detect letdown and track milk volume in real time. You do not need to pack a separate timer or notebook, but you should keep the pump charged and the app or display accessible.

