Willow® Wearable
Breast Pump Generation 2

Experience the pump that moms call life-changing. Last chance to shop Generation 2 before it’s gone.


Sizing Guide

Size matters! Here's how to find your Willow size

Coin Method

  1. First, stimulate your nipple until it perks up (don't skip this step!)

  2. Hold up a dime, nickel and quarter to compare each coin against the diameter of the base of both of your nipples, not the areola (see diagram below)

  3. Willow Size Guide

    Find your Fit

    If your nipple is: Your size is:
    Much smaller than a dime See Printable Sizing Guide
    Equal to or smaller than a dime 21mm
    Larger than a dime but smaller than a nickel 24mm
    Equal to or larger than a nickel but smaller than a quarter 27mm
    Equal to or larger than a quarter 30mm
    (Not Offered Yet)
    Note: Sizing is the same for Milk Container and Flanges
While supplies last. Promo codes do not apply on Generation 2 Pump.

Free Shipping on all Pumps.
FSA/HSA reimbursement eligible.
  • Everything works inside the Pump and inside your bra, with no external tubes, cords, or dangling bottles to hold you back.
  • Milk flows into the spill-proof disposable collection and storage bag (an essential part of the Pump Kit) or reusable Container inside the Pump (Container accessory sold separately).
  • Smart, proprietary technology responds to your body and maintains suction similar to a baby, enabling true mobility without spilling a drop.
  • Lie down, bend over, play with baby, take a conference call… pump wherever the day takes you!


Generation 2
Generation 3
Sale! $399.99
Pumps Included in Kit
Milk Bags Included in Kit
All-in-one, in-bra design for fully hands-free pumping
Spill-proof in any position
Pump into storage bags or reusable containers
7 adjustable suction levels comparable to most traditional double electric and hospital grade pumps
App Version (iOS & Android)
1 & 2
Generation 3 (easy pairing & in-app onboarding)
20% more milk output per session*
Expanded range of suction with 2 new lower suction levels
  • 2 Willow Pumps
  • 2x 24mm Flanges (27mm Flanges ship separately)
  • 2 Flextubes™
  • 24 4 oz. Milk Bags
  • Charger
  • 2 Cleaning Brushes
  • 2 Carrying Bags
  • ( Container sold separately)