- Strong and light recycled polyester with water-repellent finish - Generous main compartment; secondary compartment with internal organization has plenty of options for electronics and supplies, along with a secure lanyard for keys; dedicated laptop pocket accommodates most 15˝ laptops - Basic compression straps help secure load; exterior lash points; small pocket for sunglasses and electronics; stretch-woven pockets accommodate a full range of water bottle shapes and sizes - Air Flow mesh shoulder straps and back panel; adjustable sternum strap