Yumbox Reusable Sandwich & Snack Baggies with Zip Closure Set of 2 Baggies. Made with sturdy materials and zip closure. Yumbox reusable sandwich and snack bags are a fun and eco-friendly way to pack your lunch. The zip closure and insulated fabric keeps your food fresh and secure, and its wide opening makes it easy to fill, open, reseal and clean. Yumbox insulated fabric bags are just the right size for a sandwich, roll or wrap. Pack a banana, rice cakes, crackers, carrot sticks and more! Take Yumbox Reusable Fabric Baggies with you to school, work, travel and sports activities.