PureBites Bison Dog Treat Entry Bag 1.23oz PureBites are made with only 1 ingredient; pure 100% USA made freeze-dried Bison. Dogs love the taste of PureBites because freeze-dried treats lock in the valuable nutrients, freshness, and taste of Bison. PureBites are also high in protein and have less than 10 calories per treat. All PureBites products are made in the USA.