Second, fasten the horizontal stays. Fix both ends first and then push the middle part to make it snugly match.

(Tips: Get your backpack inside out to make this step easier!)

Third, turn your backpack over to the front side and place the vertical aluminum stays. 

*Our pictures show an inside out status only to make the visibility clearer. 
Please turn over your backpack to front side at this step.

There are upper, middle, and lower sleeves made of light grey webbing for vertical stays to insert. 

Pass the vertical stays through middle sleeves over the horizontal ones first. 

*Make sure vertical stays are over lateral stays. 

pull the end of  the webbing to help aiming the lower sleeves of the stays.

*Make sure the ends of stays stay in the lower sleeves. 
 

Put the M-shaped folded back pad,

* Because of the bended lateral stays, it may be a bit difficult to put the pad into the pocket. Just put your hand in the pocket to help pulling the pad down to the bottom.

Place upper ends of vertical stays into the upper sleeves on the lid and then close up the pocket.

Last, close the lid.

* When closing the lid, insert the upper ends of the stays as deep as possible to make the stays tightly enclosed in the sleeves. 

COBBLE is a backpack with removable internal frame backpack. With its "#" frame system, you can carry more than 23kg with comfort.
Besides, this frame system is flexible meaning that users can choose to remove any part of the "#" frame system to suit their need.
For example,
1) You may only need Mpad to support the frame if you usually carry less than 18kg.
2) You may also choose to remove all the "#" frame system to make it a frameless backpack. Then you can roll a HANCHOR SUL sleeping pad inside the backpack to form a vertual frame.
However, if you choose not to use the whole # frame system, it requires better packing skill to assure your comfort carrying experience.

If there's any further question for COBBLE, please email to info@hanchor.com, we are happy to answer or discuss with you.