All of Ultra PRO’s sleeves are made with archival-safe polypropylene materials - so your cards are not going to turn yellow in our sleeves.
The cool difference between our Eclipse Matte and PRO-Matte sleeves, for example, comes down to the way the colored backing is manufactured. Eclipse uses our super secret tech - ChromaFusion technology - to fuse two layers of materials together in a way that provides a fully opaque backing that does not peel! This same process is actually also used on our art sleeves - which is ULTRA rad!
For more about ChromaFusion, click HERE!
For more about sleeve thicknesses, click HERE!
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