Know if your pack is safe before the trail begins
Pathcast synthesizes your gear loadout, body weight, hydration, and trail gradient into an instant Green / Yellow / Red Trail Stress Test verdict.
Trail Stress Test
A definitive safety verdict. Not just a weight sum.
Every verdict displays the exact inputs that produced it — system weight, terrain grade, and metabolic burn.
Demanding load for 1,450 m elevation gain. Consider lightening pack by 2.5 kg.
Inputs used
MS-11 Calibrated ReadoutSystem weight
82.4 kg
Pack weight
12.4 kg
Discipline
Hiking
Trail distance
24.0 km
Elevation gain
+1,450 m
Duration
1 day
Hard-Red Override Active: Pack weight exceeds 25% of body weight with steep grade.
How it works
From gear closet to trailhead in three steps
Build your vault
Log your tents, layers, cookware, and tools with weights. Use AI instant parsing to add gear in plain text.
Set trail parameters
Specify distance, cumulative elevation gain, trip duration, and discipline (Hiking or Mountain Biking).
Read your verdict
Get a calibrated Trail Stress Test safety readout with transparent input metrics before packing your bag.
Two disciplines
Calibrated for distinct mountain physics
Backpack fatigue & grade resistance
Fatigue scales non-linearly with pack-to-body ratio and elevation climb. Pathcast warns before load thresholds lead to exhaustion on steep ascents.
Primary risk
Pack / Body %
Climb metric
Vertical gain / hr
System dynamics & hydration burn
MTB combines rider, bike, and gear into total rolling mass. Water expenditure accelerates 40% faster on technical trails, making hydration reserves critical.
Primary risk
Hydration deficit
System mass
Rider + Bike + Pack