Amazon.com - ISTAD Plastic Bag, Green, Comprises: 30 bags (0.4 l) and 30 bags (1 l), Can be used over and over again since it can be re-sealed. by Ikea -
Amazon.com: IKEA Istad Plastic Freezer Bag, Yellow/White: Home & Kitchen
ISTAD Resealable bag, yellow/white - IKEA
IKEA ISTAD 15 x Resealable Bags Plastic Zip lock Food Sandwich Freezer 4.5l size | eBay
IKEA ISTAD ZIP SEAL FOOD STORAGE BAG ALL SIZES KITCHEN HOUSEHOLD REUSE NEW FREES | eBay