Here are directions for another really easy sewing project. Note: You can also find this project on a dvd called “Sew Green: repurpose, recycle and restyle.”
So, this is what you do. First you need to find an old sweater. Thrift shops are a great source for old wool sweaters. (Suggestion: Wash the sweater first!)
Basically you cut a piece of the sweater sleeve off the sweater that is as long as the middle section of your water bottle. I used a rotary cutter which made it super easy to get a straight line, but scissors would work fine too (especially for younger kids who are not quite ready for a rotary cutter!). After you cut the sleeve off the sweater, turn the sweater sleeve inside out. Try it on the bottle and pin the excess width (most sleeves are bigger than the bottle’s circumference) down the length of the sleeve. Stitch down the length of your sleeve. Trim the excess away to make a narrow (1/2″) seam allowance.
Then take the flatbed off your sewing machine and stitch around the circumference of your sleeve where you cut it off the sweater. The finished cuff of the sweater looks nice heading toward the top of your bottle and the sewn part works well at the bottom.
That’s it! Done! Slip it onto your water bottle and Voila! No more “sweating” bottle in the summer and icy cold water bottle in the winter!
P.S. One thing I found that makes this project easier is finding a sweater with stripes. It helps with cutting the sleeve off in a straight line. Happy sewing!