Shop Envelopes by Size

#10 Envelopes - 4 1/8 x 9 1/2

Letters, invoices and promotional mail fit into #10 envelopes sized at 4 1/8 x 9 1/2 inch. JAM Paper carries regular, square-flap, policy and window styles, with paper weights from 20 to 32 lb. Col...

#9 Envelopes - 3 7/8 x 8 7/8

Business reply mail and billing correspondence fit into #9 envelopes sized at 3 7/8 x 8 7/8 inch. JAM Paper carries regular, square-flap, single-window and double-window styles in 20 to 32 lb paper...

A7 Envelopes - 5 1/4 x 7 1/4

A7 envelopes hold greeting cards, event invitations, photographs and wedding programs in a 5 1/4 x 7 1/4 inch size. Colors at JAM Paper range from premium white and red to olive green and gold meta...