White Opaque Mailing 100gsm Self Seal Envelope (220 x 220mm)

Enhance visibility with our 220x220 mm white window envelopes, crafted from 100gsm premium paper for a recyclable, lightweight solution. Featuring a self-seal flap and a 39x93mm window (130mm up, 15mm left), these square envelopes are ideal for business mailings. Contact our team for Custom Printing options for these 100gsm white window envelopes.