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.