Size chart of Arc'teryx Harnesses. Men, women and unisex.
This version of the M270 is officially retired.You've found a page of history! The M270 is no longer produced by Arc'teryx and it is not available to buy from major online retailers. You can still check out all the specs and claim your ownership.
Designed to be extremely light but exceptionally comfortable the M·270 is for performance focused ice and mixed climbers. Breaking from alpine tradition with streamlined features and wide-opening mesh leg loops to accommodate boots and extra layers for winter pursuits. Fifteen ice clipper slots and two large gear loops provide ample racking space.
Wear safety markers on tie-in points.
In grams, the weight, as stated by the manufacturer/brand.
If there are differences in weight (due to multiple sizes or optional accessories) we'll list them here.
The default weight is the middle-most size, often this is size M.
| 275 g|
|Sizes||S, M, L, XL|
Number of Gear Loops
Gear loops are used to hold gear (quickdraws, cams, etc) onto your harness. 4 gear loops is most common.
0 - 1 Gear Loops
Most often on full body harnesses or guide/gym style harnesses.
2-3 Gear Loops
Mostly found on lighter harnesses made for [ski] mountaineering or high-end sport climbing where weight is a high priority.
4 - 5 Gear Loops
The standard/most common number for climbing harnesses. Perfect for sport and trad.
More Than 6 Gear Loops
Designed for long multi-pitch and big wall climbing, found on harnesses made to hold the maximum amount of gear.
Occasionally, the number of gear loops will change on a harness model depending on the size. There could be 7 gear loops for the med/large but only 5 gear loops for the xsmall/small. In this case we list the highest number for the filters, and then write an explanation on the product page like, “Size S/XS can only fit 5 gear loops.”
|2 Gear loops|
|Ice Clip Slots|
Ice Clip Slot
Ice clipper slots are made to fit a carabiner that holds ice screws. These slots are generally only used by ice climbers but there is no disadvantage to having them on your harness.
Less than 40% of harnesses will have ice clipper slots. And those harnesses will usually have 2 or 4 slots, often located next to, or between, the gear loops.
|Belay / Tie-In||One Loop|
|Waist Buckle Type||Quick Adjust|
|Leg Buckle Type||None (it stretches)|
Trad climbers often look for a haul loop as they're intended to haul a rope (second line) or pack (while you climb the chimney).
A haul loop can also hold shoes or other accessories. Although not the intended use, it is also commonly used to hold a chalk bag.
|Size Chart|| |
This video shows the advantages of using the M270 Harness, and explains all the useful features.
Overall the M270 is a lovely but rather specialist bit of kit. Arcteryx's own description 'designed for performance-focused ice and mixed climbers' seems very fair; it won't be the difference between you getting up Tower Ridge or not, but for those pushing the harder grades, if it's racking system works for you, the M270's lithe strength makes it a very attractive choice. A winter-specific harness may seem a bit decadent to some, but then some of us spend a third or more of our climbing year in crampons, plus of course it will mean your summer harness will wear out less quickly!