16" refers to the device screen size, measured diagonally (Measures 15" × 10 ½" × ¾")
13"/14" refers to the device screen size, measured diagonally (Measures 13" × 10 ¼" × ¾")
8" refers to the device screen size, measured diagonally (Measures 8 ½" × 6 ¼" × ¾")
Velcro closure 
Recycled ripstop nylon, recycled PET polyfill 
Machine washable