Assertion: backpack's frame | /r/DistinctFrom | external frames
Facets:
Source sentences:
text: Frames--either aluminum stays, plastic framesheets, curved Delrin rods, or combinations of those things--are located within the packbag (as opposed to external frames; see below), and when properly fit, they hug the contours of your back, thereby cinching the load in close to your spine.