Product Colors and Sizes

  • Black Friday product
  • New Deal product
  • Cyber Monday product
  • Clearance product
  • Deal product
  • Best Seller product
  • Ecodesign product
  • New product
  • Staff Pick product
  • In The News product
  • Innovation product
  • product

Forclaz Women's MT500 Air 45+10 L Backpacking Pack

Sale price: $139.00 Regular price:

Developed from the TREK 500, the MT500 AIR range has a new taut mesh back as well as a new polyamide component combining light weight and strength. The perfect bag for all types of hike!

Color: Select a color
Size: Select a size
Sale price: $139.00 Regular price:

Free shipping over $49

Free returns

Free pickup

San Francisco, 735 Market St. Options

Select an available color and size to see options.

About this item:

  • Women's models are adapted to body shape (chest and hips) with a more open shoulder strap shape and a higher fitted belt for greater comfort and freedom of movement.
  • MT500 Air range features a ventilated back structure with mesh fabric that helps the back to breathe and dry quickly
  • Volume: 45 + 10 L I Dimensions: H 23.6” x L 11.8” x D 7.9”
  • Pack Weight: 3.5 lbs + Rain Cover Weight: 3.5 oz
Model: 8581391

Product Videos

Product Features

Forclaz Women's MT500 Air 45+10 L Backpacking Pack | Looking for a backpack that is both comfortable and versatile without being too heavy? The MT500 AIR has been designed for you by our team of enthusiasts.

Developed from the TREK 500, the MT500 AIR range has a new taut mesh back as well as a new polyamide component combining light weight and strength. The perfect bag for all types of hike!

A photo of the Forclaz Women's MT500 Air 45+10 L Backpacking Pack in use
A photo of the Forclaz Women's MT500 Air 45+10 L Backpacking Pack in use

Carrying comfort

Perfect for women carrying up to 15 kg. Ventilated back, adjustable height

Multiple compartments

Split capacity, wide front access, access to bottom of bag, 8 pockets


Bottle holder, pole holder, rain cover, multi-use straps


Lightweight but durable polyamide main fabric, reinforced bag base


Reinforced frame with mesh reducing pressure and letting the back breathe.

Easy hydration

Internal compartment for a water bladder (not included).


1.6kg: the empty weight indicated is that of our benchmark sample

Questions & Answers

Look for product information, frequently asked questions, opinions...


I'm confused about the torso lengths for this?


When choosing the size of a hiking backpack, it’s important to take into account your body shape. The backpack size should be adapted to your back. It’s measured from the base of your neck to your hips and the grip of the stomach strap should be comfortable on your hips. How to accurately measure your torso for optimal backpack fit? To ascertain this crucial measurement, enlist the help of a friend and have a pliable tape measure on hand. Bend your head forward and locate the bony protrusion where your shoulder slope meets your neck—the 7th cervical (C7) vertebra, marking the top of your torso length. On either side of your body, run your hands down the ribcage to the apex of your hip bones (known as the iliac crest). Align your index fingers forward and your thumbs backward, creating an imaginary line between them. The point on your lumbar region where this line intersects is the base of your torso measurement. Maintain an upright posture, and ask your friend to measure the distance between the C7 and the imaginary line formed by your thumbs. This measurement constitutes your torso length.

By Uluç on Mar 8, 2024 | STAFF

Product Customer Reviews

Skip to reviews
263 Reviews
Write a Review 
Forclaz Women's MT500 Air 45+10 L Backpacking Pack, gray blue Image 9 of 8
Filtered by reviews Loading reviews…
Very practical bag with…

Very practical bag with many pockets, it took a little time to organize it but once each object found its place it is very functional.

icon-circle-checkmark verified purchase
A great trekking backpack

The perfect bag for long hikes. I tried it for a week while walking in the mountains, where it seemed very light and comfortable. It is easy to adjust the straps of the bag so that the weight is distributed evenly and not concentrated on the shoulders/back. It is very roomy and is equipped with several compartments in which I could easily organize the things I brought with me, it has many pockets, especially the spacious hip belt pockets - I could put everything I needed in them so that I did not have to take the bag off several times.

Hiking backpack

Very light easy to use

Both functional…

Both functional and adjustable. Be careful of the Velcro fasteners which snag your clothes.

icon-circle-checkmark verified purchase
Very practical but not suitable for small people

I bought this bag over a year ago and tested it on several three-day mountain treks (with my tent or in lodges). The +: * Lots of pockets that allow you to store and easily access your equipment * Large enough to go completely independently with your tent * You don't feel the weight of the bag at all * Rather solid so far; no tear in the fabric, no closure or buckle has failed and even when fully loaded The -: * I am 1m50 tall and I am embarrassed if I add things to the top of the bag, so I have to leave without the additional 10L * The frame hurts at the waist, but by carrying the bag a little lower than usual, I no longer feel anything * I tried one day to leave with a 1L bottle on the side and on a narrow path the bottle rubs against the walls and unbalances me. I would have preferred to be able to put two 0.5L bottles on the side or on the straps and have less bulky storage than the current one * The fact that the back is curved, in addition to adding its water pocket, means that it there is not a lot of space in the main pocket I recommend this bag for its practicality, but changes to make it more suitable for small people would be welcome.

icon-circle-checkmark verified purchase
Very versatile bag

The multitude of pockets and clips allows you to adjust the filling of the bag as best as possible. The support and carrying are perfect. The only regret is the closures which would benefit from being more flexible. The lining tends to get caught when closing... Too bad

icon-circle-checkmark verified purchase

Very well compartmentalized

icon-circle-checkmark verified purchase

Spacious, practical and comfortable to use.

icon-circle-checkmark verified purchase
My 8-year-old daughter...

My 8 year old daughter joined the scouts this year, it was perfect for her camp! The bag is very well thought out, the compartments are easily accessible and well made.

icon-circle-checkmark verified purchase
Very disappointed with my purchase

It's a very good bag, but you must not be less than 1.60 meters tall. I think I was misinformed about the bag when I purchased it. After about twenty kms I had pain on each side of my hips with bruises after 50 kms. Even when setting the smallest size the metal structure hurts a lot. I had to exchange my bag with my husband's, which is not at all suitable for me but which hurts less. I still have a lot of miles to go! If I could return it, that would be a pleasure.

Excellent backpack

very satisfied with the purchase! it is sturdy and durable. It has many compartments and pockets of different sizes which are very useful for managing the space in the best possible way. I find it quite roomy and very comfortable.

icon-circle-checkmark verified purchase
Good bag

Good bag, well thought out, pretty. The only downside for me is that, at 13 kilos, it hurts my collarbones and each side of my kidneys (round part) at the end of the day (around 25km). I tried several adjustments but to no avail.

icon-circle-checkmark verified purchase

Used while roaming, this bag is not suitable for my body type (153cm). The frame rises too high behind the head and hinders movement. The hip belt is uncomfortable, you can feel the metal frame. Furthermore, the bag seems solid, is well compartmentalized and makes it easy to find your belongings. The hole for the water bag hose is quite narrow. If you are small, this bag may not be suitable for you.

icon-circle-checkmark verified purchase
Good product

I used it throughout the 10-day camp. The interior volume is nice, but it was a bit small and I had a hard time fitting my belongings. Apart from that, it provides ease of use thanks to its waist support, which takes the product to a higher level than other products. The shoulder parts are thick but it is not a problem. Forclaz there is no need to explain anyway. The price could have been a little more affordable. I was satisfied.

icon-circle-checkmark verified purchase
Ruined my shoulders

I went on a trek for 3 days. The straps are getting really painful! So I focused on the size, but nothing to do, the trip quickly became chaotic

icon-circle-checkmark verified purchase
Skip to reviews

Additional Product Information


Main fabric: 100.0% Polyamide ; Lining: 100.0% Polyester ; Yoke: 100.0% Polyamide ; Webbing: 100.0% Polypropylene ; Bag cover: 100.0% Polyester ; Coating: 100.0% Polyurethane


Bag dimensions when in use: Height : 65 cm / 26 in Width: 35cm / 14 inDepth: 30 Cm/12 inTorso length (= distance 7th vertebrate - ilium): Minimum: 39 Cm/15 in Maximum: 51 Cm/20 in The waistband:Minimum: 77 Cm/30 in Maximum: 128 cm / 50 in


The bag has a 45 L volume with an extension for carrying an additional 10 L. The volume of each backpack is measured using a standardised method. we use small balls to fill the main compartment as well as each pocket. The balls are then emptied into a graduated container in order to determine the equivalent volume in litres, with a margin of error of just a few %.


1.6 kg All inclusive.Weight of the removable rain cover 100 g

Air design

As with the MT900 UL line, the MT500 AIR range has a ventilated back structure with mesh fabric (net fabric) that helps the back to breathe and dries quickly. Rigidity is guaranteed by a reinforced frame. The back is adjustable with a release strap that’s easy and quick to use.


Polyamide main fabric 210D RS (Ripstop = increased resistance to tears), reinforced bag base (420Dx330D RS)

Recommended carry weight

According to the project for which this backpack was designed, we recommend you don’t load it above 15 kg. Then you can benefit from all its features. Moreover, it’s not recommended to carry a load greater than 20-25% of your own weight and put too much pressure on your back.

How to pack a backpack?

Put your bedding at the bottom. Put heavy gear (tent, camp stove, food) near your back. Store your clothing around it. A groundsheet or tent can be placed under the flap or under the bag if there isn't room inside. Keep your waterproof jacket and fleece to hand. Place small items for daily use (sun cream, map, glasses etc.) in the pockets. The water bladder can be placed in the compartment provided down the back.

How to use the multi-use straps?

The new range of MT500 AIR and MT900 UL bags has two straps with open aluminium buckles (on the lower part of the bag). These straps let you hook on a tent or mattress under the bag or on the barrel. If not in use, these straps can be stored (by pushing them inside) in the hidden pocket intended for this or detached and used elsewhere with the lark's head knot buckle.

Female body shape

Our women's models are adapted to their body shape (chest and hips) with a more open shoulder strap shape and a higher fitted belt for greater comfort and freedom of movement.

Product testing

All our backpacks undergo field tests by users who are representative of our target market under similar conditions to those you will encounter. To test, assess and validate products, our mission test connects the product manager responsible for the product design with individuals independent to DECATHLON. This backpack was tested by trekkers for 5 weeks in the Canary Islands, the Pyrenees and the Mont Blanc mountain range.

Storage instructions

Store your bag in a dry, ventilated place away from direct light.




Size Guide Visual

Please Sign In to Post Your Question

In order to notify you about the answer it is required to Sign In.

Sign In