Cardboard: Yes! The cardboard box is 100% reusable and recyclable. Insulation: Yes! Our cool-packaging liners are paper-based and fully recyclable. Ice Packs: Yes! 1. Reuse: Simply place in your freezer and allow the gel packs to refreeze. This typically takes 48-72 hours to freeze thoroughly. 2. Dispose: We use Enviro Ice Packs to cool ship our packages. These ice packs, once thawed, can be used as plant food or other household watering or are completely drain safe.  If the pack liner is not recycled and somehow ends up in a landfill, there is an additive added to the resin making the final product biodegradable. This additive does not impact the effectiveness of the pack, but still aids microorganisms in breaking the material down into biomass.