Montane products are defined in three fit categories, Active Mountain, Classic Mountain and Mountain Run. This is to help you choose the right clothing for the right activity and ensure the product fits as it was designed, for optimal performance. All our fit categories take into consideration layering systems. For example, if you fit a size medium Active Mountain Fit baselayer, you will need a medium sized Active Mountain Fit mid-layer and the same in a waterproof. Similarly, our Classic and Slim legwear take into consideration what you may wear over or underneath in various conditions, a winter weight trouser will have the space to wear Long Johns underneath (or Long Janes).
Please note all measurements are approximate. Montane reserves the right to amend specifications in the interests of improving their products.
Upper Body

Classic Mountain
Designed for mountain walking, mountaineering and more general use, these garments have a versatile, relaxed fit. Classic Mountain outer layers are cut slightly larger in the upper body to allow for bulkier winter layering underneath.

Active Mountain
Designed to be low bulk and to fit closely to the body, or to be layered with other non-bulky garments, these garments are intended for faster-paced mountain activities.

Mountain Run
These garments are designed for mountain running and are tailored to be closely form fitting.
Lower Body

Classic
Legwear designed for all-round mountain use. Classic Fit winter legwear allows for baselayer legwear underneath.

Slim
Tailored, closer fitting legwear for faster-paced mountain activities.

Mountain Run
These garments are designed for mountain running and are tailored to be closely form fitting.
Remember these measurements are taken from your body, not your clothing.
UK 6/US XXS/EUR 32 | UK 8/US XS/EUR 34 | UK 10/US S/EUR 36 | UK 12/ US M/EUR 38 | UK 14/US L/EUR 40 | UK 16/US XL/EUR 42 | |
---|---|---|---|---|---|---|
BUST | 78 – 82cm 31 – 33in | 82 – 86cm 33 – 34in | 86 – 90cm 34 -36in | 90 – 94cm 36 – 37in | 94 – 98cm 37 – 38in | 98 – 102cm 38 – 40in |
WAIST | 60 – 64cm 24 – 25in | 64 – 68cm 25 – 27in | 68 – 72cm 27 -28in | 72 – 76cm 28 – 30in | 76 – 80cm 30 – 31in | 80 – 84cm 31 – 33in |
HIP | 86 – 90cm 34 – 35in | 90 – 94cm 35 – 37in | 94 – 98cm 37 – 38in | 98 – 102cm 38 – 40in | 102- 106cm 40 – 42in | 106 – 110cm 42 – 43in |
INSIDE LEG – REG | 75.5cm 29.75in | 77cm 30.5in | 78.5m 31in | 80cm 31.5in | 81.5cm 32in | 83cm 32.5in |
INSIDE LEG – SHORT | 70.5cm 27.75in | 72cm 28.5in | 73.5cm 29in | 75cm 29.5in | 76.5cm 30in | 78cm 30.75in |
INSIDE LEG – LONG | 80.5cm 31.5in | 82cm 32.25in | 83.5cm 32.75in | 85in 33.5in | 86.5cm 34in | 88m 34in |


Remember these measurements are taken from your body, not your clothing.
XS | S | M | L | XL | XXL | |
---|---|---|---|---|---|---|
CHEST | 92cm 36in | 97cm 38in | 102cm 40in | 107cm 42in | 112cm 44in | 117cm 46in |
WAIST | 71cm 28in | 76cm 30in | 81cm 32in | 86cm 34in | 91cm 36in | 96cm 38in |
INSIDE LEG – REG | 76cm 30in | 77.5cm 30.5in | 79cm 31in | 80.5cm 31.5in | 82cm 32.25in | 83.5cm 33in |
INSIDE LEG – SHORT | 71cm 28in | 72.5cm 28.5in | 74cm 29in | 75.5cm 29.75in | 77cm 30.25in | 78.5cm 31in |
INSIDE LEG – LONG | 81cm 32in | 82.5cm 32.5in | 84cm 33in | 85.5in 33.75in |
UNISEX GLOVES | XS | S | M | L | XL |
---|---|---|---|---|---|
HAND CIRCUMFERENCE (Excluding Thumb) | 15.5 – 17.5cm 6 – 7in | 17.5 – 19.5cm 7 – 7.5in | 19.5 – 22cm 7.5 – 8.5in | 22 – 24cm 8.5 – 9.5in | 24 – 25.5cm 9.5 – 10in |
HAND LENGTH | 14 – 16cm 5.5 – 6.5in | 16 – 18cm 6.5 – 7in | 18 – 20cm 7 – 8in | 20 – 22.5cm 8 – 9in | 22.5 – 24cm 9 – 9.5in |
WOMEN’S GLOVES | XS | S | M | L |
---|---|---|---|---|
HAND CIRCUMFERENCE (Excluding Thumb) | 17 – 18cm 6.75 – 7.25in | 18 – 19cm 7.25 – 7.5in | 19 – 20cm 7.5 – 8in | 20 – 21cm 8 – 8.5in |
HAND LENGTH | 16 – 17cm 6.25 – 6.75in | 17 – 18cm 6.75 – 7.25in | 18 – 19cm 7.25 – 7.5in | 19 – 20cm 7.5 – 8in |


HEADWEAR | S | M | L | XL |
---|---|---|---|---|
HEAD CIRCUMFERENCE | 55 – 56.5cm 21.5 – 22.5in | 56.5 – 58cm 22.25 – 22.75in | 58 – 59.5cm 22.75 – 23.5in | 59.5 – 61cm 23.5 – 24in |
Hiking, Trekking and Mountaineering Packs
These backpacks are fitted on back length. This is measured from your C7 vertebrae (the boney protrusions when tipping your head forwards) to the centre of the hip bone (where you ‘put your hands on your hips’). It is useful to have a friend help with this measurement.
Back Length | S – M | M – L | One Size | Adjustable |
---|---|---|---|---|
UNISEX PACKS | 40 – 45cm 16 -18in | 45 – 53cm 18 – 20in | 45 – 53cm 18 – 21in | 40 – 53cm 18 – 21in |
WOMEN’S PACKS | 38 – 43cm 15 – 17in | 43 – 48 cm 17 – 19in | N/A | 38 – 48cm 15 – 19in |
Running Packs and Vests
Due to the close fitting nature of these packs and vests, we use the chest measurement to determine the correct size.
Chest Size | S – M | M – L | One Size |
---|---|---|---|
UNISEX PACKS | 76 – 97cm 30 -38in | 97 – 112cm 38 – 44in | N/A |
WOMEN’S PACKS | N/A | N/A | 74 – 90cm 29 – 36in |

BOOTIE / FOOTIE | XS | S | M | L | XL |
---|---|---|---|---|---|
UK SHOE SIZE | 3.5 – 5.5 | 5.5 – 7.5 | 7.5 – 9.5 | 9.5 – 11.5 | 11.5 – 13.5 |
EU SHOE SIZE | 37 – 39 | 39 – 41 | 41 – 43 | 43 – 46 | 46 – 48 |
GAITERS | S | M | L |
---|---|---|---|
UK SHOE SIZE | 4.5 – 7 | 7 – 9 | 9 – 12 |
EU SHOE SIZE | 37 – 40.5 | 40.5 -42.5 | 42.5 – 46.5 |
VIA SOCK IT GAITER | S – M | M – L |
---|---|---|
UK SHOE SIZE | 4.5 – 8 | 8 – 12 |
EU SHOE SIZE | 37 – 41.5 | 41.5 – 46.5 |