Posted by Jeremy Jarratt on
Yes, these sleeves are heat activated. Some of the sleeve materials store better than others but in general we recommend storing the sleeves between 50°F and 70°F with low humidity. If the temperature gets below 50°F, it can cause the sleeves to become brittle. If the temperature rises above 70°F, it can cause the sleeves to shrink. For the specific recommendation of the sleeve’s material, please reach out to your customer service representative.
