{"product_id":"white-tyvek-r-18lb-10-x-13-x-1-1-2-expansion-envelopes-with-peel-and-seal","title":"White Tyvek® 18lb 10 x 13 x 1 1\/2  Expansion Envelopes with Peel and Seal","description":"\u003cp\u003eNeed a little more space for important mailings? JAM Paper White Tyvek® 18lb 10 x 13 x 1 1\/2 inch Expansion Envelopes with Peel and Seal, forms, reports, presentation papers, and other flat items that need extra capacity without folding or crowding. Made from strong 18lb Tyvek, these expansion envelopes stand up to ripping, moisture, and rough handling better than standard paper envelopes, making them a solid choice for shipping, storage, and office organization. The bright white finish creates a clean professional look that fits business use, classroom materials, mailing projects, and creative packing needs. Finished with a peel and seal closure, JAM Paper makes it easy to pack thicker contents quickly with a mailing envelope that balances durability, flexibility, and everyday convenience.\u003c\/p\u003e","brand":"JAM","offers":[{"title":"Default Title","offer_id":48169095102676,"sku":"PC1677","price":1.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0818\/6983\/2404\/files\/pc1677.png?v=1784121617","url":"https:\/\/www.jampaper.com\/products\/white-tyvek-r-18lb-10-x-13-x-1-1-2-expansion-envelopes-with-peel-and-seal","provider":"JamPaper.com","version":"1.0","type":"link"}