Offers are welcome. Spencer’s Flip Pak Gir Pig Reversible Backpack Munchies Interior - Invader Zim. If you love Invader Zim, you'll love rocking this officially licensed Gir Pig Reversible Backpack. Depending on your mood, stick with the soft Gir exterior or flip this bag inside out to reveal a monster munchies Zim design. Any '90s kid who grew up on Nickelodeon will love adding this reversible backpack to their collection.  Officially licensed Exclusively at Spencer's Adjustable straps Strap Length: 36" 1 Front pocket Zip closure Dimensions: 16.5" H x 12.6" W x 5.7" D Capacity: 19 lbs. Material: Polyester, faux fur Care: Spot clean