what's your Willow size?
For most moms, adding 2-4mm to your nipple size results in the most comfortable fit. Our team is here to
help if you need it.
if your nipple measurements
recommended Willow flange
additional sizing insert
11-13mm
24mm*
15mm
13-15mm
24mm*
17mm
15-17mm
24mm*
19mm
17-20mm
21mm
n/a
20-23mm
24mm
n/a
23-26mm
27mm
n/a
26-28mm
n/a
n/a
*Willow sizing inserts fit 24mm flanges and containers only.
Sizing inserts, containers, and flanges sold separately.
Questions? Our experts can help.
1-888-WILLOW-3