The Koolee is filled with locally sourced New Zealand flaxseed which enables the Koolee 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 Koolee has a removable flaxseed-filled inner pouch which makes the Koolee-shell machine washable, in order to easily clean off any grubby cuddles. Flaxseeds can be heated time and time again so your Koolee-pouch is long lasting, easy to heat and requires only 40 seconds in the microwave.