Brenthaven cases and sleeves for the 11 inch MacBook Air are built with device protection in mind. Brenthaven offers lightweight 11 inch MacBook sleeves built with a High Density Foam Protection System, cushioning your MacBook Air from impact in the case of accidental drops of your 11 inch MacBook Air. Brenthaven BX²™ 11 inch MacBook Air sleeves wrap your device with proprietary, impact-dispersing BX²™ Xtreme Foam to ensure maximum drop protection. Brenthaven Collins 11 inch MacBook Air sleeves feature an urban design with a cushioned interior to help prevent scratches and scrapes when carrying your device. All Brenthaven 11 inch MacBook Air sleeves and cases are built to last from premium, durable materials, and are backed by a 100% Lifetime Guarantee.