The DiscSox POLY sleeve has now been replaced with the new DiscSox Classic “Poly” sleeve.   Like the original DiscSox Poly sleeve, the new Classic sleeve is now made from environmentally friendly, archival-safe, 100% recyclable polypropylene material.  By combining the best features of both sleeves; the greener material of the DiscSox Poly, and the easy and unique side insertion design…