Our prices include most shipping charges. **NEW** West of Mississippi 10% shipping charges waived on orders over $200(except +frt items) (Details)


These Polyester (mylar) L-Sleeves are made from crystal-clear, 4 mil archival polyester, approved by the Library of Congress for long-term storage. We use Dupont inert Melinex or a suitable equivalent. Our polyester has passed the Photo Activity Test (P.A.T.) which means that it is safe for long-term storage.

The unique construction of L-Sleeves (two adjacent sealed sides) allows for quick and safe insertion and removal of photos and prints when not in permanent storage.

Scroll down for sizes and pricing.

We also make a line of Polyester Poster L-Sleeves that fit perfectly in our new archival Movie Poster Boxes. The unique construction of L-Sleeves (two adjacent sealed sides) allows for quick and safe insertion and removal of photos and prints.

Polyester L-Sleeves for 4 x 5" prints
Polyester L-Sleeves for 4 x 5" prints
Description: **OVERSTOCK 25% OFF**
4-1/4 x 5-1/4" (OD)
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv45

Polyester L-SLEEVES for One Sheet Posters
Polyester L-SLEEVES for Posters
Description: **NEW SIZE**
One Sheet Poster
L Sleeve
27-1/2 x 40-1/4" x 4 mil Polyester (mylar)
NO flap
**NEW**
**NEW**
**NEW**
**NEW**
**NEW**
Base SKU: slvosp40

Polyester L-Sleeves for 4 x 6" prints
Polyester L-Sleeves for  4 x 6" prints
Description: 4-1/4 x 6-1/8" (OD).
These L-Seal Sleeves are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints/postcards when not in permanent storage.
Base SKU: slv46

Polyester L-Sleeves for 5 x 7" prints
Polyester L-Sleeves for  5 x 7" prints
Description: 5-1/4 x 7-1/4 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv57

Polyester L-Sleeves for 8 x 10" prints
Polyester L-Sleeves for 8 x 10" prints
Description: 8-1/4 x 10-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv810

Polyester L-Sleeves for 8 x 12" prints
Polyester L-Sleeves for 8 x 12" prints
Description: 8-1/4 x 12-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv812

Polyester L-Sleeves for 8-1/2 x 11" prints
Polyester L-Sleeves for 8-1/2 x 11" prints
Description: 8-3/4 x 11-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv8511

Polyester L-Sleeves for 8-1/2 x 11-7/8"
Polyester L-Sleeves for 8-1/2 x 11-7/8"
Description: A4 Digital Prints
8-1/2 x 11-7/8" (OD)
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slva4

Polyester L-Sleeves for 9 x 12" prints
Polyester L-Sleeves for 9 x 12" prints
Description:

9-1/4 x 12-1/4" (OD). 

These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv912

Polyester L-Sleeves for 11 x 14" prints
Polyester L-Sleeves for 11 x 14" prints
Description: 11-1/4 x 14-1/4 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1114

Polyester L-Sleeves for 11 x 17" prints
Polyester L-Sleeves for 11 x 17" prints
Description: 11-1/4 x 17-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1117

Polyester L-Sleeves for 12 x 18" prints
Polyester L-Sleeves for 12 x 18" prints
Description: 12-1/4 x 18-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1218

Polyester L-Sleeves for 13 x 19" prints
Polyester L-Sleeves for 13 x 19" prints
Description: 13-1/4 x 19-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1319

Polyester L-Sleeves for 14 x 18" prints
Polyester L-Sleeves for 14 x 18" prints
Description: 14-1/4 x 18-1/4" (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1418

Polyester L-Sleeves for 16 x 20" prints
Polyester L-Sleeves for 16 x 20" prints
Description: 16-1/4 x 20-1/4 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1620

Polyester L-Sleeves for 18 x 24 prints
Polyester L-Sleeves for 18 x 24 prints
Description: 18-1/4 x 24-1/4 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv1824

Polyester L-Sleeves for 20 x 24" prints
Polyester L-Sleeves for 20 x 24" prints
Description: 20-1/4 x 24-1/4 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv2024

Polyester L-Sleeves for 24 x 30" prints
Polyester L-Sleeves for 24 x 30" prints
Description: 24-1/2 x 30-1/2 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv2430

Polyester L-Sleeves for Rock & Personality Poster
<font color=810541> Rock & Personality Poster </font>
Description: Rock & Personality Poster L Sleeve
20-1/2 x 38-1/2" x 4mil Polyester (mylar)
NO flap
Base SKU: slvrpp

Polyester L-Sleeves for 24 x 36" prints
Polyester L-Sleeves for <font color=810541>24 x 36" prints</font>
Description: 24-1/2 x 36-1/2 (OD).
These L-Seal Envelopes are made from crystal-clear archival Polyester, approved by the Library of Congress. Their rigidity (4 mil) and unique construction (two adjacent sealed sides) allows for quick/safe insertion and removal of photos/prints when not in permanent storage.
Base SKU: slv2436

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