The Mystery Ranch T100 is a genuine expedition-scale pack — 100 L of capacity and 3400 g of pack weight, built for extended treks and heavy alpine loads rather than anything approaching ultralight use. The Astral Frame internal frame system and contact-padded back panel work with load lifters and a five-point hip belt to spread a fully loaded pack's weight across shoulders and hips, which matters at this scale more than on smaller packs where the load is inherently lighter.
The 500D Lite Plus CORDURA fabric is built for abrasion resistance over months of heavy use, not weight savings — at 34 g per liter this is among the heavier packs in its size class, reflecting a design brief centered on durability and load capacity. Two front pockets, two side pockets, and a single ice axe loop cover storage and mountaineering basics, while a convertible top lid adds flexibility at base camp. This is a pack for extended expeditions with genuinely heavy gear, not weekend trips.
Specifications
Color
Black
Total Volume
100 l (26.42 gal)
Weight
3400 g (7.50 lb)
Dimensions ( Height x Width x Depth )
102 x 48 x 43 (3.3 x 1.6 x 1.4 ft)
Back System Type
Contact (padded)
Frame Type
Internal frame
Chest Strap
✓
Load Lifter Straps
✓
Gender-Specific Fit
Unisex
Main Fabric
500D Lite Plus CORDURA®
Fabric Type
Cordura
Main Compartment Access
Top lid, Front panel (J-zip)
Front Pocket Count
2
Side Pocket Count
2
Ice Axe Loops
1
Hydration Compatible
✓
Intended Use
Multi-day trekking, Mountaineering
Volume/Weight Ratio f(x)
29.4 l/kg
Weight per Liter f(x)
34 g/l
Pack Style
Mountaineering pack
Hip Belt Type
Padded with pockets
Where to buy
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Category context Hiking Backpacks (407 products)
Weight
Expedition weight· mainstream zone 767–1790 g· ranked 402 of 408
3400 g
33 g 6050 g
Total volume
Expedition size· mainstream zone 38–60 l· ranked 6 of 407