• OPEN END (“catalog”, opens on short dimension) • PEEL N SEAL Flat, plain Tyvek® mailers are great no-nonsense envelopes for mailing practically anything that you can fit in a flat envelope, where strength and light weight (to reduce postage costs) are a factor. You can avoid printing your return address by using labels that you already have. We highly recommend sub 11 (when available) as anything heavier is usually overkill. Want it printed? Click here to Order/Request Quote
