- Notebook sleeve
The Tred Sleeve provides maximum protection for laptops. Designed for the K-12 environment, it has rigid wall frames and six sides of high-density foam padding. Updated with riveted handles and a rubberized bottom, the Tred Sleeve provides ultimate durability and protection. The CORE Protection System uses a combination of rigid coroplast, bowed inserts, and fully-surrounding high-density foam to accommodate and snugly protect laptops from impact.