Each envelope in this pack is made out of smooth, high quality, 28lb paper and features a versatile light grey color. These large envelopes are ideal for enclosing letter or legal sized documents with no need for folding and no risk of creating unwanted creases. Each one has a straight flap opening with a self-adhesive, peel and seal strip closure so that you can rest assured that your mailed items will remain secure in transport! Use these envelopes for business and personal mailing needs. Details:Light gray12" x 15.5"28 lb.Available in various countsFeatures seal and peel