body: 4 oz.yd / 233 gsm, 100% polyester with water resistant finish trim: 100% polyester oxford at top and back panels Black/Carbon has reflective print UTK Hydropel helps to keep contents dry in wet conditions Tote design converts into backpack with stowable straps Zippered main compartment with reflective toggle Laptop compartment fits most 17\” laptops Inside zippered security pocket Large front and back pockets with hook and loop closure Mesh water bottle pocket on left side Wide webbing ergonomic tote handles Dimensions: 14\” X 5\” X 16 3/8\”