A: The backpack has a relatively large capacity, ith a commonly used capacity of 20L、25L、30L、35L、40L、45L、50L、55L、60L、65L、70L、75L、80L、85L、90L、95L、100L etc.
A: The backpack has a relatively large capacity, ith a commonly used capacity of 20L、25L、30L、35L、40L、45L、50L、55L、60L、65L、70L、75L、80L、85L、90L、95L、100L etc.