I've been using the 21mm size for a few weeks and my output actually went up once the fit was right. The two-piece design is handy too, since I only swap the flange part and keep the same base. Way less soreness than my old setup.
Jason★★★★★
The smaller 19mm opening finally stops the chafing I dealt with for months using standard sizes, and the universal base clicks on and off without any fuss. It’s such a relief to have a flange that actually matches my anatomy instead of the other way around.
Claire W.★★★★★
With the 2-piece design, I can easily swap between the 19mm and 21mm without buying whole new sets, and the universal base clicks on securely. The precise sizing means no more chafing or milk pooling around the edges for me. It’s a small thing, but having those in-between sizes available makes a rea