The Marmot Thor 2P is a four-season expedition geodesic tent for two, built for mountaineering and expedition conditions rather than everyday trekking — and the weight reflects that: 4,106 g minimum, 4,621 g fully packed, over 2 kg per person. Six 9 mm DAC Featherlite NSL aluminum poles in a geodesic layout give this freestanding tent wind and snow resistance that two-pole ultralight tents can't match.
Materials are correspondingly heavier-duty: a 50D polyester fly rated to 3,000 mm, a 70D nylon floor at 10,000 mm, and a 40D nylon inner tent that's only partially mesh rather than full mesh — a tradeoff for warmth over ventilation. A snow skirt, 16 guy-out points, and reflective guy lines are built for anchoring in harsh conditions. A 3.4 m² floor and two 1.5 m² vestibules give 1.7 m² per person — given the tent's weight, that's more about gear storage room than luxury space.
Two interior pockets, a gear loft, a lantern loop, and an included repair kit round out a feature set aimed at expeditions where equipment durability outweighs pack weight.
Specifications
Color
Orange, Gray
Tent Type
Geodesic
Season Rating
4-season (winter/expedition)
Intended Use
Mountaineering, Expedition
Freestanding
Freestanding
Wall Construction
Double-wall
Setup Type
Pitch inner first
Packaged Weight
4621 g (10.19 lb)
Minimum Weight
4106 g (9.05 lb)
Packed Size ( Length x Diameter )
72 x 22 (2.4 x 8.7 ft)
Floor Area
3.4 m2
Floor Dimensions ( Length x Width )
221 x 175 (7.3 x 5.7 ft)
Peak Height
112 cm (3.7 ft)
Capacity
2
Number of Vestibules
2
Vestibule Area (total)
1.5 m2
Number of Doors
2
Number of Poles
6
Pole Material
Aluminum
Pole Brand/Series
DAC Featherlite NSL
Pole Diameter
9 mm (0.35 in)
Fly Material
Polyester
Fly Denier
50
Fly Coating
Silicone + PU
Floor Material
Nylon
Floor Denier
70
Floor Coating
PU (Polyurethane)
Floor Type
Bathtub floor
Inner Tent Material
Nylon
Inner Tent Denier
40
Mesh Coverage
Partial mesh
Water Column - Fly
3000 mm (118.11 in)
Water Column - Floor
10000 mm (393.70 in)
Seam Sealing
Factory taped seams
Snow Skirt
✓
Guy Point Count
16
Guy Lines Included
✓
Reflective Guy Lines
✓
Interior Pockets
2
Gear Loft/Attic
✓
Lantern Loop
✓
Door Type
D-door
Footprint Available Separately
✓
Stuff Sack Count
1
Repair Kit Included
✓
Weight per Person f(x)
2311 g (5.09 lb)
Minimum Weight per Person f(x)
2053 g (4.53 lb)
Floor Area per Person f(x)
1.7 m2
Total Living Space f(x)
4.9 m2
Vestibule to Floor Ratio f(x)
44 %
Space Efficiency f(x)
0.74 m2/kg
Where to buy
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Category context Tents (363 products)
Weight
Expedition weight· mainstream zone 976–2584 g· ranked 330 of 364