This modification will replace the standard side compression consisting of cord/linelocs, with two webbing side compression straps per side.
They are made from 5/8" webbing and 5/8" ladder locks. The top strap is angled, and the bottom strap goes straight across. The side pockets will also have a hole so that you have the option to run the side compression strap either over or under the side pocket.
Webbing side compression adds about 1oz to overall pack weight.