Optional labels
It provides two stock labels in the package you can pick the one you like and stick it to the front of the carrying case. Or you can keep it as it is or pastes some other stickers that you like.
New upgrade shoulder strap
Hook: It's used to hang water bottles, flashlights, umbrellas, etc. If you are using earphones, you can also put the earphone cable through the hook to reduce swingingExtension lot: There are two extension lots of different sizes for hanging climbing hooks, etc.Elastic mesh bag: It can store Bluetooth amplifier, and the tested maximum supported volume is the FiiO BTR7. 
Different hooks selected different ways of carrying
Select the symmetrical hooks on both sides, it's used as a single-shoulder backpack.Select the top hook only, it can be hung on the waist with a climbing hook.Select the top hook and one side hook at the bottom (choose a left side or right side according to your own preferences), then it's used as a cross-body sling backpack. Three independent spaces
The space may seem small, but it can actually load a lot. Take AK CA1000 as an example, with a size of 104.9x148.8x45(mm).The front and rear of the main storage space are padded with a sponge, and there is a built-in zippered mesh pocket, open inner pocket, and burglarproof drawstring.The front zipper pocket can store keys, small change bus cards, etc.The rear pocket can provide a larger space after unzipping. Take 550mL mineral water as an example.Strengthened structure for better durability
There are stitched braided straps on the side to make the shape of the entire backpack more stable and the bottom is strengthened and even applied cowhide leather for the base.
