S'well is a reusable water bottle brand that fuses fashion and function. Its stylish bottles keep cold cold for 36 hours and hot hot for 18 hours. Beyond design and functionality, the thermos presents a sustainable option.
Every year, hundreds of billion plastic bottles are consumed around the world, wreaking havoc on the environment before they decompose after some 450 years. Plastic production involves a significant amount of crude oil, and in incineration [1], it releases toxins. When Sarah Kauss founded S'well in 2010, she had an ambitious goal to rid the world of single-use plastic bottles.
Reusable water bottles weren't always Kauss’s passion. After graduating from Harvard with an MBA, she switched gears and worked in real estate and consulting. It took a hike with her mother in 2009 for her to see a way to change the world for the better.
On that hike, she had carried a cheap water bottle with her. But it heated up under the sun, causing the water to taste awful. The bottle also didn’t look good. Kauss decided she could create something functional, reusable, and on top of that, attractive. So she hired a designer and contracted manufacturers in China. Within months, she had a double-insulated prototype.
Kauss positioned S'well as an affordable luxury by pricing her products between $25 and $50. Though there are similarly high-functioning thermoses in the market, sophisticated design choices combined with its eco-friendly vision as a Certified B Corporation buttress this price range.
In the beginning, Kauss did almost everything by herself, from planning to sales to customer response. She ran a business without outside investment and used her apartment as a storage warehouse. But growth was slow and inventory piled up in her apartment.
Then in 2011, the introduction of the product in O, The Oprah Magazine, became a turning point. When the editors told Kauss they wanted to feature S’well, she had only one color: ocean blue. Seeing an opportunity, she scrambled up more colors and expanded her business by setting up a separate warehouse. Once O Magazine put S'well bottles on a recommended products list, positive word-of-mouth spread to the effect of dramatically increasing demand.
What surprised Kauss was that a significant proportion of bottle sales came from customers collecting multiple colors. Having observed this pattern of repeat purchases, Kauss decided to add new designs twice a year (akin to any fashion brand), while collaborating with famous designers to launch special edition products.
In 2012, Starbucks reached out to collaborate with S’well. To leverage this opportunity, Kauss suggested keeping the minimum selling price per item and printing the name S'well clearly visible on the bottles. The following year, S'well thermoses displayed in some Starbucks stores started to sell out. By 2015, S'well bottles were sold at Starbucks stores around the world. Having grossed $100 million in sales in 2016, the company branched out to make reusable food containers in 2019.
Kauss’s vision has been to eventually rid the world of disposable bottles by sellng thermoses. S'well estimates that over the past decade, it has succeeded in replacing four billion plastic bottles.
While it is clear that the company has made some impact, there are reasons to question its proclaimed vision. S’well business model relies on encouraging repeat purchases of new designs. Most customers own dozens of tumblers, instead of just one replacing their disposable cups. The carbon footprint [2] of a S’well bottle is not zero either. Throughout the entire product cycle, much detergent and water is used to keep a thermos clean.
However, if one person on Earth starts carrying a thermos instead of consuming several plastic bottles every day, that’s already a step in the right direction. In the same vein, one might say S’well’s effort counts.