S'well Glass Original Bottle
Silicone is only a gasket/seal — what touches your food is Borosilicate Glass and Stainless Steel (304 / 18-8).
S'well's glass-bodied bottle - borosilicate glass with an 18/8 steel lid that screws onto the glass with no plastic threads, sealed by a silicone gasket. The water path is glass, steel, and silicone, so it is silicone-only (unlike S'well's plastic-capped steel bottles).
The verdict: Silicone only
Borosilicate glass body, an 18/8 stainless-steel lid that screws directly onto the glass - S'well explicitly uses no plastic threads - and a removable food-grade silicone gasket. The only non-metal, non-glass part in the water path is the silicone seal, so this rates silicone-only. The included straw is glass with a food-grade silicone base, and the exterior sleeve is silicone; none of that adds plastic to the drink path. This is the "glass line with an all-steel lid" that fixes the plastic-cap problem on S'well's steel bottles.
Verification: Manufacturer confirmed · Last reviewed
What it's made of
| Part | Material | Food contact |
|---|---|---|
| bottle body high-quality borosilicate glass | Borosilicate Glass | Yes primary |
| lid 18/8 stainless steel; screws directly onto the glass - brand states no plastic threads | Stainless Steel 304 / 18-8 | Yes primary |
| lid gasket removable food-grade silicone gasket - the only elastomer in the water path | Silicone | Yes seal |
| straw (included) borosilicate glass straw with a food-grade silicone collapsible base; optional | Borosilicate Glass | Yes primary |
| sleeve food-grade silicone exterior sleeve for grip/protection | Silicone | No |
The glass member of the S'well line, and the one worth buying if you care about the water path (S'well's flagship steel bottles route your drink over a plastic-lined cap - see the S'well Original entry). It's a single-wall borosilicate bottle in one 18oz size, wrapped in a food-grade silicone sleeve for grip, and it ships with a glass-and-silicone straw. Being single-wall glass, it isn't insulated and it can break.
Pros
- Steel lid screws onto the glass with no plastic threads (brand-stated)
- Removable gasket makes it easy to clean; borosilicate resists thermal shock
- Included straw is glass + silicone, not plastic
Cons
- Single-wall glass - not insulated, and breakable
- Only one size (18 oz) and pricier than most glass bottles
Notes
- This is distinct from S'well's steel bottles, whose classic cap has a plastic inner body - see the S'well Original (steel) entry
Categories: Water Bottles
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://www.swell.com/pages/glass-original-bottle borosilicate glass body, food-grade silicone sleeve, 18/8 stainless-steel lid with a food-grade silicone gasket; brand states "no plastic threads" and the straw is glass + silicone
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