The Heatie is made from OEKO-TEX certified organic bamboo fabric & cotton, then filled with locally sourced flaxseed which enables the Heatie to be warmed in the microwave or cooled in the freezer. It makes for a great snuggle companion or a fun and soothing icepack. It’s perfect for cooling down on hot summer days & stuffy car rides. The Heatie has a removable flaxseed-filled inner pouch which makes the Heatie-shell machine washable, in order to easily clean off any grubby cuddles. Flaxseeds can be heated time and time again so your Heatie-pouch is long lasting, easy to heat and requires only 40 seconds in the microwave.See our FAQ's page for more info on Heatie.