The detailed introduction picture is 37L, 45L backpack is larger.
Dropshipping:
● I’m so happy work with you! 
● There will be no information in the package.
● I will according to different countries, Find the fastest shipping method , and lowest price. 
● Most bags can be send on the same day, A few bags can be send within 2 days.
● I will double check every bag, Confirm it is perfect. 
● Please contact me, if you have any requirements.