Stasher bags were created to be endlessly reusable, keeping single-use plastics from entering our oceans and landfills. One bag. One choice. All for the planet. Stasher bags are made from platinum silicone (only the best), which does not degrade over time. From freezer to microwave, from oven to dishwasher, Stasher bags are made to last, each one keeping thousands of single-use plastics out of our oceans and landfills. Stasher bags are completely free of BPA, BPS, lead, latex, and phthalates.