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🍼 Pump smarter, not harder — because your comfort fuels their future.
Medela PersonalFit Flex 21mm Breast Shields feature innovative Flex technology with a 105° opening angle to reduce pressure and enhance comfort. Designed to remove 11.8% more milk per minute, these BPA-free, food-grade polypropylene shields come in a convenient 2-pack and fit all Medela pumps, offering a customizable and efficient pumping experience for busy, health-conscious moms.









| ASIN | B07L197S97 |
| Best Sellers Rank | #5,174 in Baby Products ( See Top 100 in Baby Products ) #17 in Breast Pump Accessories |
| Brand | Medela |
| Capacity | 680.39 Grams |
| Colour | Clear |
| Country of Origin | Switzerland |
| Customer Reviews | 4.6 out of 5 stars 15,521 Reviews |
| Global Trade Identification Number | 00020451366531 |
| Is the item dishwasher safe? | Yes |
| Item Nype Name | Medela Breast Shields – PersonalFit Flex, 21mm Medela Breast Shield Shaped Around You for Comfortable and Efficient Pumping, Made Without BPA, Pack of 2 Breastshields |
| Item Weight | 60 Grams |
| Manufacturer | Medela, Inc. |
| Manufacturer Part Number | 101036653 |
| Material | Plastic, Polypropylene |
| Model number | 101036653 |
| Number of Items | 1 |
| Product Style | Small (Pack of 2) |
| Size | S (Pack of 2) |
| Special Feature | Portable |
| Special Features | Portable |
| UPC | 020451366531 |
| Unit Count | 1 Count |
A**R
Fits to babyhug electric breast pump
I ordered these flanges to match with babyhug electric breast pump they given 28 mm and it works also fits to it
H**S
Good
Highly recommend it for people having problem with 24mm suction
S**B
Product not returnable
The flange won't fit my pump and Amazon won't even allow return or another size replacement., please dont buy unless ur sure of size and pump type
C**N
Super produit
Super produit adopté pour mon premier et deuxième enfant
K**K
High-quality, comfortable, easy to clean and use!
The Medela PersonalFit Flex Breast Shields (2-Pack, Small 21 mm Flanges) have made a noticeable difference in my pumping routine and are a standout accessory for anyone using a Medela breast pump. These breast shields are thoughtfully designed with Medela’s PersonalFit Flex technology, which really enhances comfort and function compared to traditional rigid flanges. One of the things I appreciate most is the soft, flexible rim—it adapts gently to the breast’s natural shape and movement, helping to reduce the pinching or soreness I’ve experienced with other shields. The 21 mm size in this pack fits me well and helps create a good seal, which I’ve found contributes to more comfortable and effective pumping sessions. For anyone who might hesitate to pump because of discomfort, these feel like a real improvement. The shields are very easy to attach and work seamlessly with most Medela pump models, so setup is quick and hassle-free. Having a 2-pack is especially convenient: I can keep one on my pump and have a spare ready to go, which is great for busy days or when I need to switch between locations. In terms of performance, the PersonalFit Flex shields optimize milk flow without causing irritation, and I often finish pumping feeling much more comfortable than I used to. This personal experience makes me confident in recommending them—not just for comfort, but because they genuinely support a more effective pumping experience. Overall, the Medela PersonalFit Flex Breast Shields in Small 21 mm are a high-quality, reliable accessory that I would recommend to other parents seeking better comfort and a custom-fit solution for their Medela breast pump.
K**R
Comfortable and easy to clean
Such a great fit! Very comfort and easy to clean
S**A
Product fine but very small shields - not good for big breasts or elastic nipples
Would work fine for smaller breasts. Short neck so not good for bigger or elastic nipples.
K**S
Works well with medela pumps
Fits well medela pumps. I have to say that buying proper size of the flange that fits my breast, transformed my pumping journey. Recommend 😊
Trustpilot
2 weeks ago
2 days ago