- Travel light while making a positive impact on the environment by selecting the compact Dell Premier Slim Backpack 15, made with Dell's EcoLoop solution dyeing process for polyester that generates up to 90% less wastewater, 62% less CO2 emissions, and uses up to 29% less energy than traditional dyeing processes. EVA foam cushioning offers shock resistance and a lightweight way to protect your laptop. Your laptop and important documents will remain dry in wet, stormy weather while inside the backpack that is constructed of sturdy polyester with leather accents, and coated with a water-resistant protective material made from reclaimed automobile windshields. Carry the lightweight backpack by the leather cushioned top handle, sling the backpack over your shoulders to go hands-free or attach the backpack on top of your rolling suitcase with the trolley strap. Charge your laptop inside the backpack while you're traveling by passing a cable through to a dedicated portable charger pocket.