Size Matters 黑色圓柱套

The soft seal makes a huge difference—pumping is way more comfortable now without that awkward pinching. I’ve been using it daily and it stays put even during longer sessions, which is exactly what I needed.

I was skeptical at first, but the silicone seal actually stays put during use without slipping—way better than my old setup. The soft, flexible material makes longer sessions far less irritating, and it’s easy to clean afterward.

The comfort seal on this sleeve makes a huge difference during longer sessions—no more pinching or sliding around. It fits securely and feels much more durable than the basic sleeves I've used before. Definitely makes pumping more enjoyable.