Build the load first. Then choose the pack.
Pack capacity is not a trip-length quiz. It is the result of what you actually carry, how tightly it packs, which items ride outside, food and water strategy, rigid objects, and the reserve you want. Pack Lab keeps those assumptions visible and gives you a range instead of false precision.
2. Pack recommendation
Show calculation assumptions
Nominal liters vary by brand, size, pockets, frame geometry, and measurement method. The result is deliberately a range.
3. Edit the gear
Turn items on or off, change quantity, or replace archetype data with measured grams and milliliters. “Packed volume” means the space the item occupies in the actual packing state—not its retail box.
Add a custom item by measured volume or dimensions
4. Pack classes to compare
These are capacity and suspension classes—not a claim that one pack fits every torso or carries the same for every person. Use the result to narrow the market, then verify torso fit, hipbelt fit, exact size-specific capacity, return policy, and how the loaded pack feels.
5. Named packs that fit—or fail—the actual model
Loading source-checked comparisons…
6. Load placement plan
| Heavy / bulky item | Mass | Suggested zone |
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7. Complete build recipe
Save the exact assumptions and item data as a portable JSON recipe. This becomes the foundation for future Rodfather preassembled packs, retailer carts, and dossier-specific gear recommendations.
Full selected load
| Category | Item | Qty | Weight | Mid-volume | Data confidence |
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