Prevue Pet snuggle sack has a warm, soft fleece interior to protect pets from cold drafts and attaches easily to the cage with 2 clips. The cozy interior provides a great place for pets to sleep, play and hide. Available in red, green or blue with contrasting trim and jumbo size. Gives birds a place to retreat. Plastic insert in fleece bottom lets the sack keep its roomy shape. Machine washable.