Featherweight, fully padded and lined and made from sustainable rPET nylon (made from recycled plastic bottles), the 13" MacBook Eco-Friendly Horizontal Sleeve is ultra thin and offers excellent protection when transporting your Apple laptop in a larger bag or briefcase. Horizontal orientation designed to be carried in horizontal messenger style bags and briefcases ;Made from tough rPET waterproof nylon fabrics;Fabrics made from recycled plastic water bottles help reduce pollution;Fully padded, layered protection;Soft touch velvet interior liner will not harm your tablet finish;High-impact seam tape provides excellent edge protection;Works with Apple keyboard cover;Open-top design allows easy tablet removal at airport security;The zipperless design will not scratch like sleeves with zippers;MacCase has been making sleeves for Apple portables since 199810-year Limited Warranty