Breast Pump Sizing Kit – Willow Pump Skip to main content

Everyday Heroes save 30%

Up to 40% off accessories & breastfeeding essentials

Your bonus offer awaits! Sign up for email + SMS here

Breast Pump Sizing Kit

$24.99
New
HSA/FSA
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
Breast Pump Sizing Kit
New
HSA/FSA
Breast Pump Sizing Kit

Breast Pump Sizing Kit

$24.99
Find your perfect breast pump flange fit with a wide range of inserts designed for maximum pumping comfort and milk output.

Free shipping on orders $50+

Pay using HSA/FSA with flex Select Flex at checkout to pay for your HSA/FSA eligible items
Breast Pump Sizing Kit

$24.99

How It Works

  • Measure your nipples either an hour before or an hour after nursing or pumping.
  • If your flange still doesn’t feel comfortable, experiment with the other inserts. (Also, make sure you’re wearing a snug but stretchy pumping bra!)
  • Book your session with a Willow Sizing Specialist if you need additional support

Bundle & Save

Mom-approved bundles for breast care, milk storage, and pumping on the go

Pump & Clean Anywhere Bundle
10% off
New

Pump & Clean Anywhere Bundle

Pumping shouldn’t press pause on adventure. Wherever your travels take you, this pack of essentials ensure a clean and convenient pumping experience. Includes Willow Wave Manual Pump and Travel Cleaning Pack.
$64.98 $58.48
Willow Go® Pump and Anywhere Case
10% off
HSA/FSA

Willow Go® Pump and Anywhere Case

Save on pumping peace of mind with the Willow Go and protective Pump Anywhere Case.

$409.98 $368.98
Early Days Breastfeeding Bundle
10% off
HSA/FSA

Early Days Breastfeeding Bundle

Relieve discomfort or gently induce letdown - and safely store milk when you're done - with the two essentials that provide comfort and convenience in the early days and beyond.
$47.97 $43.17
Travel Cleaning Duo
10% off
HSA/FSA

Travel Cleaning Duo

Everything you need to clean and care for your pumps on-the-go.
$57.00 $51.30