Glass designed to bounce.
Glass wrapped in protective silicone, with a thicker base to cushion everyday knocks.
Built as one.
A glass bottle with a soft silicone wrap, a flexible nipple, and a separate route for incoming air. Here’s how the parts work together.
Glass where the milk goes.
A borosilicate glass body holds the milk. The soft silicone wrap stays on the outside.
Wrapped, not sprayed.
Silicone is shaped directly around the glass, with extra thickness at the base. No separate sleeve to slip off or wash.
Air takes its own route.
Our patent-pending venting system uses an optional silicone tube to route incoming air toward the bottle’s base, without keeping the nipple vent facing up.
Soft silicone. Four flows.
Soft German Wacker silicone, shaped with breastfed babies in mind. Built-in venting and four flows let you choose a pace that suits your baby.
Award-winning design.
The Wrapped Glass Bottle won a Red Dot Award and an iF Design Award in 2026.
Bottle safety testing, beyond the required checks.
Independent third-party lab testing. Report dated August 28, 2026.
See the results →- Lead, including the silicone exterior
- Not detected
- Cadmium
- Not detected
- BPA, BPS and BPF
- Not detected
- PVC screening
- Negative
- Phthalates
- Below reporting limits
- Nipple and venting tube
- Meets safety limits
Bottle feeding, planned ahead. One subscription.
Bottles, fresh nipples and feeding emails through baby’s first year. Less to research and remember.
To start
Your first bottles.
Wrapped Glass or the Duo, with two free spare nipples.
Every two months
Fresh nipples, in your chosen flow.
Worn nipples can let milk flow faster, making it harder for baby to keep up. We send fresh replacements.
At four months
An upgrade to 8 oz bottles.
A paid upgrade for 5 oz starters, unless you keep 5 oz in My Subscription.
As baby grows
Feeding tips for each stage.
Helpful emails timed to your baby’s age.
Find a nipple flow that suits your baby. Learn bottle care.
Practical answers for the next feed.