Jeonghyun O Is it include cam belt?
and if I buy one, what kind of weight pockets or belts have to buy
LEWIS R What do you mean cam belt it does come with cam belts for side mounting tanks which can also be used for single tank back mount. You will need to use a weight belt.
DEE S Two stainless cam bands are included for your side-mount tanks they also should include the bolt snaps. I dive twin lp 108's and usually 2 al 80's for stages so I only use two shoulder weights 2bl trim weights with the Oxycheq pockets on the shoulder straps. I dive this with a Whites fusion Drysuit and heavy undergarments. As with any side-mount harness it is all about trim weights. This BC along with some cheap accessories will get you trimmed out and properly weighted. Also you may need some wight on your butt plate depending on what canister light you are running.