THE FLAX PACs are filled with 100% CANADIAN GROWN flax seed.  Flax seed has a 30-40% oil content and as a result will not evaporate its moisture content as quickly as a water filled product such as rice.   Other inferior products would include, rice, buckwheat and cherry pits.  I would encourage you to stay away from these as they are water fill...

When heated, THE FLAX PACs heating pads will retain its heat for approximately 35-45 minutes.  Longer under a blanket or covering.  Our FLAX PACS are filled with flax seed.  Absolutely no fillers whatsoever.  For this reason, the flax seed, a tiny seed, will hold its heat with the denseness of its packing.  We often tell our customers to give th...