Flange sizing is the single biggest factor in comfortable, efficient pumping. Elvie Pump breast shields come in 21mm, 24mm, and 28mm, so if you're getting pinching, poor output, or discomfort, trying a different size usually solves it. Because the parts that contact milk wear over time, we stock the consumables you'll replace on a schedule — spout and valve kits, Stride connect tubing and diaphragms, and dishwasher-, microwave-, and freezer-safe replacement bottles. The Elvie Catch cups round things out for leak collection between sessions.

All Elvie milk-contact components are BPA-free and designed for easy cleaning, which matters when you're assembling and washing parts several times a day. Stocking spare shields, valves, and bottles ahead of time means a lost or worn piece never costs you a pumping session.

Explore complementary supplies in our Breastfeeding & Lactation collection, or browse the wider Maternity & Baby Care category for everything from feeding to postpartum recovery.