Marshmallow White (90x145mm) 11B Envelope 105gsm is perfect for an RSVP card, they will fit easily within either a DL or C6 envelope. Marshmallow White is stylish, luxurious ultra-white and has an ultra-smooth, matte quality finish. It matches perfectly with the range of other envelopes, paper, card, box, place cards and folded cards in the Marshmallow White range. Lick and stick to seal envelopes or use a damp sponge. Laser & Inkjet compatible however we recommend testing our papers and envelopes with your printer first. Using pulp from sustainable managed forests.