Carry Bags
A practical material-science guide for people who think too much about what they carry.
Seven materials, examined molecule-up. Then the system that uses them. Each chapter starts at the polymer level and walks outward through how it is spun, woven, laminated, or tanned, what it does well, what it does poorly, and which bags in the collection wear it.
The goal is vocabulary: read the spec sheet, and the marketing falls away. A bag stops being “tactical-looking” and starts being “VX21 X-Pac with a 50D taffeta backing.”
This web edition mirrors the root manuscript in discrete chapters so you can read online, deep-link a section, or jump back to the full book file in the repository when you prefer one continuous scroll.
Table of Contents
- № 01
The PRVKE Lesson
How one camera bag forces structure into daily life.
1 min - № 02
Nylon
The default fiber every later chapter is, in some way, a reaction to.
11 min - № 03
Polyester
One atom away from nylon, with the working-class job description.
13 min - № 04
X-Pac
Where single fabrics give up and laminates start showing seams.
11 min - № 05
EcoPak
X-Pac's architecture rewritten to a sustainability brief.
9 min - № 06
Ultra (UHMWPE / DCF / Challenge Ultra)
Why the lightest bags also float, and what they trade for it.
18 min - № 07
Waxed Canvas
Five centuries of cotton and paraffin, before petrochemicals had a turn.
10 min - № 08
Leather
The only fabric in this book that gets better with age.
10 min - № 09
From Materials to System
Why the lens widens from molecules to roles.
1 min - № 10
The Full System
Seven materials become a graph of roles, not a pile of bags.
6 min - № 11
The Arc
What a decade of carry-bag mistakes leaves as material literacy.
2 min - № 12
Bag Inventory at Time of Publication
Bag-by-bag status and condition at publication.
2 min - № 13
Reading the Spec Sheet
Datasheet vocabulary without re-deriving the Chapter 1 math.
2 min - № 14
References
Sources, primaries, and rabbit holes.
3 min