Home Products Blue Envelopes Blue Envelopes Product Filters Size 3-1/8" x 5-1/2" (#5-1/2) 3-1/8" x 6-1/4" 3-1/2" x 6-1/4" 3-5/8" x 6-1/2" (#6-3/4) See All 3-7/8" x 8-7/8" (#9) 4-1/8" x 9-1/2" (#10) 4-1/4" x 6-1/2" (#6) 4-3/8" x 5-3/4" (A2) 4-3/4" x 6-1/2" (A6) 5-1/4" x 7-1/4" (A7) 6" x 9" 8-1/2" x 11" 9" x 12" 10" x 13" See Less Other Acid-Free Perforated Flap Security Tint Sort By Alphabetical - A-Z Price - Low to High Price - High to Low #10 Blue Regular Envelopes Starts $46.44/box #10 Blue Window Envelopes Starts $51.44/box #10 Pastel Blue Regular Envelopes Starts $35.49/box #10 Pastel Blue Window Envelopes Starts $38.44/box #6-3/4 Blue Regular Envelopes Starts $47.44/box #6-3/4 Blue Remittance Envelopes Starts $45.44/box #6-3/4 Pastel Blue Regular Envelopes Starts $30.44/box #9 Pastel Blue Regular Envelopes Starts $36.49/box #9 Pastel Blue Remittance Envelopes Starts $76.49/box 10 x 13" Blue Catalog Envelopes Starts $145.44/box 10 x 13" Pastel Blue Catalog Envelopes Starts $104.49/box 3-1/2 x 6-1/4" Blue Remittance Envelopes Starts $46.44/box 3-1/8 x 5-1/2" Blue Coin Envelopes Starts $40.44/box 3-1/8 x 6-1/4" Pastel Blue Offering Envelopes Starts $93.49/box 4-1/4 x 6-1/2" Blue Two-Way Envelopes Starts $89.49/box 6 x 9" Blue Booklet Envelopes Starts $83.49/box 8.5 x 11" Blue Card Stock Starts $34.44/box 8.5 x 11" Blue Letterhead Starts $25.44/box 8-1/2 x 11" Pastel Blue Letterhead Starts $37.49/box 9 Blue Regular Envelopes Starts $59.44/box 9 x 12" Blue Booklet Envelopes Starts $127.49/box 9 x 12" Blue Catalog Envelopes Starts $120.49/box 9 x 12" Pastel Blue Booklet Catalog Envelopes Starts $116.49/box 9 x 12" Pastel Blue Booklet Envelopes Starts $120.49/box A2 Blue Announcement Envelopes Starts $73.44/box A6 Blue Announcement Envelopes Starts $80.49/box A7 Blue Announcement Envelopes Starts $86.49/box Sorry, no results returned