S'well Original Bottle
Stylish triple-walled steel bottle, but the screw cap has a plastic inner body - water contacts plastic at the lid, so it is not plastic-free.
The verdict: Minimal plastic contact
The body is triple-walled 18/8 stainless steel, but the classic Original cap pairs a stainless steel outer shell with a plastic inner cap body and a silicone seal - so the drink-contact surface of the lid is plastic, not steel. The Traveler flip-straw lid is all-plastic on the inside. Included as a corrective: the steel-and-silicone marketing hides a plastic cap interior in the water path. Note S'well also sells a Glass Original line whose lid is all stainless steel with a silicone gasket - that one is materially different (silicone-only) and is not this product.
Verification: Manufacturer confirmed
What it's made of
| Part | Material | Food contact |
|---|---|---|
| bottle body (triple-wall insulated) 18/8 (304) stainless steel | Stainless Steel 304 / 18-8 | Yes primary |
| cap inner body plastic inner cap body; the drink-contact surface of the lid | Plastic other / unspecified | Yes primary |
| cap outer shell 18/8 stainless steel outer cap shell (cosmetic/exterior) | Stainless Steel 304 / 18-8 | No |
| cap seal silicone sealing gasket | Silicone | Yes primary |
S'well's signature slim, triple-walled insulated bottle, known more for its finishes and gift-y designs than for materials transparency. It's a well-made insulated bottle sold in a wide range of sizes and prints; the catch is the cap. (If you want the S'well look with a steel drink path, their glass-bodied Original line is the one to reach for - see that entry.)
Pros
- Triple-wall insulation; strong finishes and design
- 18/8 steel body
- A glass-bodied S'well line with an all-steel-lid exists as a better option
Cons
- Classic cap has a plastic inner body - water contacts plastic at the lid
- Traveler flip-straw lid is all-plastic inside
- Materials of the cap are not prominently disclosed
Categories: Water Bottles
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://www.swell.com/products/silver-lining-cap Original bottle cap combines stainless steel with a plastic cap body and a silicone seal
- manufacturer https://www.swell.com/products/traveler-flip-straw-lid Traveler Flip Straw Lid is largely plastic on the interior (community-reported all-plastic drink path)
- manufacturer https://www.swell.com/pages/glass-original-bottle S'well Glass Original uses an all-stainless-steel lid with a removable food-grade silicone gasket - the more plastic-free option in the S'well line
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