Mountain Equipment
Mountain Equipment Switch Base Men's Zip T
- Weight: 9/10 How much it adds to your pack.
- Warmth: 3/10 How much the fabric insulates next to your skin. Heavier fabric is warmer and slower to dry.
Lowest price we found
£74.99 at Ultralight Outdoor Gear
Go to Ultralight Outdoor Gear Compare 2 shopsCold-weather climbing, mountaineering and ski touring as a next-to-skin layer: Mountain Equipment lists alpine climbing, winter climbing and expedition use
- Weight
- 150 g (not stated)
- Fabric weight
- Not published
- Fibre
- Synthetic
- Merino
- 0%
Where to buy
Ultralight Outdoor Gear £74.99 In stock. Free delivery. RRP £79.99 on the page. Free tracked delivery on all UK orders.
View at shop: Ultralight Outdoor GearMountain Equipment £80 In stock. Free delivery. Free UK mainland standard delivery on orders of £50 or more, £5.00 under £50 (delivery page; the banner says over £50); The UK store address mountain-equipment.co.uk redirects to this one.
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 9/10How much it adds to your pack. 9: Among the best you can buy for this.
Mountain Equipment's page gives 150 g and does not say which size. 150 g is under 160 g, the 5 band. Ultralight Outdoor Gear lists 125 g (S), 136 g (M), 146 g (L) and 153 g (XL), which is also the 5 band for size M.
Warmth
Estimate from maker's specs: fibre (no fabric weight published) 3/10How much the fabric insulates next to your skin. Heavier fabric is warmer and slower to dry. 3: Below average. Fine for some trips, not others.
Estimate from maker's specs
In short
Good for
- Cold-weather climbing, mountaineering and ski touring as a next-to-skin layer: Mountain Equipment lists alpine climbing, winter climbing and expedition use
- Stop-start days where moisture builds up: the Octayarn knit has no face or lining fabric, which Mountain Equipment says lets moisture move out faster
- Wearing alone or under other Switch pieces in a cold-weather layering system
Strengths
- 150 g by Mountain Equipment's figure (score 9): 136 g in size M per Ultralight Outdoor Gear
- Slim fit with flatlocked seams and a YKK deep centre front zip for venting
- 20D ripstop nylon overlays on the shoulders add wind resistance, per Mountain Equipment
Weaknesses
- Slim fit, made by Mountain Equipment for fast-moving dynamic activity
- Care: wash by hand or machine at 30 °C with liquid detergent or specialist cleaner; tumble dry on low heat with a slow spin
Sources
We haven't tested this ourselves. Every score comes from these specs, tests and reviews.