Office Depot Clean Seal(TM) First-Class Envelopes, 10in. x 13in, 30% Recycled, White, Box Of 100, 77930 First Class green diamond border provides easier postal recognition Simply peel off the release strip and press  no moisture required! Made of crisp 28-lb white wove material for a substantial feel. Greener choice  contains 30% postconsumer recycled content.