Insulated Reusable Lunch Bag, Brown Paper Bag, Includes 4 Mini Permanent Markers Our Brown Paper Lunch Bag has a traditional brown lunch bag appearance, is made from durable Tyvek material: it's strong, tear-proof and leak-proof. Its large, insulated, reusable, wipes clean. Velcro tabs secure your items inside: Hot or Cold Stop lunch thieves in their tracks! Personalize your lunch sack with the included 4 non-toxic permanent mini sharpie colored markers with key-clip caps: Please note: Markers are permanent and do not wash off. This bag also works great for ripening avocados! ;) The Original Doodle Bag Lunch Sack wipes clean with a damp cloth, is water resistant, tear-proof and breathable Very large and roomy, with thermal lining that is not overly bulky so it can easily be folded up and put into a briefcase or backpack once emptied: Fits up to 6-16.9 ounce water bottles LIFETIME GUARANTEE: We take pride in providing high quality products and exceptional customer service. If theres ever a problem with your brown paper lunch bag, well replace it.