In creating a sleeve for Thinkbaby bottles, we looked carefully at the solutions on the market. We wanted a material that would provide maximum insulation and protection. But...we also wanted to see how eco-friendly that we could make the sleeve.
Our investigation took us to our friends at Patagonia. Patagonia largely pioneered the use of Limestone based neoprene to replace traditional neoprene for their wetsuits.
Thinkbaby's sleeves are made from Limestone. They feel just like traditional neoprene. We have made them in 4 colors. They will not only protect the bottles, but will provide significant insulation.
Please note that we made them fit tight, so they cannot be easily removed by a toddler.
Hand wash. We recommend using a detergent that is free of chlorine. Most of the natural detergents on the market from Eco Lever to Seventh Generation should be free of toxic chemicals.