Benji (our whippet/jack/lab mix) has been inseparable from his West Paw Design Eco Bone! We can't complain either- this awesome toy is made by one of our favorite dog companies West Paw Design :) The stuffing inside is made from recycled Intelliloft, which is recycled fibers made from plastic bottles! Ck out the chart below to see the process! Benji is an avid Chewer & most (90%) of all his toys are UNSTUFFED- b/c he likes to take out ALL the stuffing-LoL! Below he's showing off his pearly whites while playing w/ his Eco Bone.