The backpack in the video is 40L!
80L is bigger! Please check the size and choose according to your size needs!
Product name: 3 Way Duffle Bag (backpack/crossbody bag or shoulder bag/handbag)
Material: 1000 Polyester
S Size:50X25X26cm / 20X10X10.5cm (LxWxH)
M Size:58X30X30cm / 23X12X12 inch(LxWxH)
L Size:68*36*34cm / 26X14X13 inch(LxWxH)