Quality Park Survivor R1530 Tyvek USPS First Class Mailer, 9 1/2 x 12 1/2, White (Box of 100)

Great value. 9 1/2 x 12 1/2 with the FIRST CLASS stamped all around it. Sturdy

I like these tyvek envelopes because they’re strong and sturdy, and a box of 100 takes up so much less space than a box of 100 bubble mailers of the same size. I don’t ship breakables, so these first class tyvek mailers have been perfect for my needs. I’m on my second box, and I’ll keep ordering more as I need them. Very pleased.

I was amaze of the durability and weight of the envelope. Better was the size i selected. I am able to put a 9 x 10 into it with ease. Will order more.

We order these very often for the office. I work at an accounting firm and during deadlines we go through these so fast! We ran out and accidentally forgot to order more. These came fairly quick and just keep in mind that this size is not very common. I've tried walking into other office supply stores and they never have these in stock. Good price.

Great quality and very expedited delivery!!