Mountain Equipment
Mountain Equipment Orion Pant (men's, regular leg)
- Weight: 1/10 How much they add to your pack.
- Rain protection: 8/10 How well the fabric and seams keep out heavy, long rain, when new.
Winter climbing, alpine climbing and ski mountaineering shell days
- Weight
- 600 g (not stated)
- Waterproof rating (HH)
- 20,000 mm
- Fabric
- 3-layer DRILITE XT 160D x 70D fabric (recycled polyamide), nanoporous membrane, PFAS-free DWR
- Seams taped
- Not published
- Leg zips
- Full
Where to buy
Trekitt £308 In stock. Free delivery. Black, medium regular: 1 in stock. Shown 23% off the £400 list price. Free delivery over £65.
View at shop: TrekittMountain Equipment £400 In stock. Free delivery. Black M regular: 36 in stock (M short out of stock). Free UK mainland delivery over £50.
View at shop: Mountain EquipmentPrices checked 8 Nov 2026 on each shop's own page; shops can change them. We earn no commission on these links; shops are listed by price. More
Our ratings (out of 10)
1 to 10, compared with the whole market. Each says what it's based on. How we score
Weight
From maker's figures 1/10How much they add to your pack. 1: A real weak point.
Mountain Equipment lists 600 g with no size stated; Hardloop and Trekitt also list 600 g. That is in the 470 g+ band, and a size M would need to be over 130 g lighter to leave it.
Rain protection
Estimate from maker's specs: hydrostatic head figure 8/10How well the fabric and seams keep out heavy, long rain, when new. 8: Clearly better than most.
Estimate from maker's specs. Mountain Equipment says its head is 'over 20,000 mm'; we use 20,000 mm.
In short
Good for
- Winter climbing, alpine climbing and ski mountaineering shell days
- Pulling on over boots and crampons with full-length 2-way zips
- Climbers who want Cordura kick strips and removable snow gaiters
Strengths
- 3-layer DRILITE XT 160D x 70D rugged shell; 'over 20,000 mm' head (Mountain Equipment)
- Full-length 2-way YKK AquaGuard side zips and a 2-way fly zip with storm flap
- Adjustable braces with drop-seat and a zipped thigh pocket
- Zip-out internal snow gaiters and Cordura kick strips
Weaknesses
- 600 g is heavy for walking (470 g and over scores 1)
- Mountain Equipment doesn't say how the seams are finished, so rain protection is an estimate, not a reviewed score
- Built for winter climbing: braces and gaiters are more than a summer walker needs
- No independent test, so fit and durability aren't scored
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.