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Forclaz Women's Backpacking Backpack 45+10 L - MT500 AIR

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!

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Sale price: $139.00 Regular price:

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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 Features

Forclaz Women's Backpacking Backpack 45+10 L - MT500 AIR | 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 Backpacking Backpack 45+10 L - MT500 AIR in use
A photo of the Forclaz Women's Backpacking Backpack 45+10 L - MT500 AIR 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

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Not suitable for small people

I am 1.54 m tall and the bag, despite the adjustments, falls too far on the hips which causes redness and pain as well as around the collarbones. Too bad because the storage level is well suited to my 5 day trek in bivouac. It might be wise to set a minimum size for its use.



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Ideal for multi-day adventures

It has accompanied me during my stages doing the Camino de Santiago (with quite a few complicated ups and downs) and it has been comfortable for me, as it has several compartments I had everything well organized, even the compartment for the bottle I was able to take it without problems. The zippers held up well. In short, I recommend it for this type of adventure of more than a week as was my case; good value for money. Sometimes it is worth spending a little more and having plenty of space.

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Conforms to the use and…

Conforms to use and color out of the ordinary for this type of product

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Good hiking bag

Happy with my purchase!

I am delighted about it. Not…

I am delighted about it. No back pain despite the weight of the belongings. I adopted it for long hikes.

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I like it very much but I made a mistake in not being able to take it with me on the plane. However, it is still very convenient for checking in luggage when traveling abroad. It is also very useful for mountain climbing and moving.

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Awesome backpack,…

Great backpack, lacks a bit of shoulder length

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She can't live without it anymore

When traveling or hiking, she can no longer do without it.

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a little touch of…

a little touch of pink for a woman's bag could be nice!! ;-)

Great except the color

The bag itself is great, it’s a shame not to have a different color choice… but we make do with it

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Great bag in terms of storage However I tested it over two days with 14kg on my back. I had extreme pain in my shoulders as well as my hips. And at the level of the straps, the bag squeaks...

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The best rucksack for trek

I have used this bag in 2 treks, and this is my second purchase of rucksack after buying a bag from amazon, I learned- padding on the straps is required but too much padding doesnot implies that carrying would be comfortable. the main feature in a rucksack bag is its weight management. This bag has very good weight management, it has an outer frame that really helps in maintaining good posture while walking. the mesh on the back really helps to dry out the sweats on back while walking. The height adjustment is also fast and easy. the straps are very comfortable on shoulders and they also have holes so dry outs the shoulders too. Now the packing the bag- this bag has 2 features- one can pack the things like a sack- putting the things from the top and one can put the things inside the bag like the suitcase, this feature actually helps the beginners a lot. And as the bag opens like a suitcase also {front zip on left and right} one can easily take out or put things inside very easily without taking out other things. so the space management is great inside the bag. The two pockets on the sides doesn't merge out from the bag. the 2 bottles holder on both sides is very well placed to take out the bottle when walking. the top cover easily holds some essentials and can be used as a side bag. and the size extension is also very easy. So as a whole this is an wonderful rucksack bag. I bought 3 bags of different capacities and felt that the price spend is really worth for the bag as these bags are very easy to carry and even for long trails. My son age 11, walked from Bhujwasa to Gongotri carrying the 45 ltr version of this bag, he had his sleeping bag, jacket, etc. and he never complained about shoulder pain or too tiered to carry the bag.

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A real hiking bag

Bought in anticipation of a challenge in July 2025: the entire GR20 Nice design Well compartmentalized Sits well on the hips No pain in the shoulders: full weight 11kg Delighted with my purchase Good value for money

Mile surprised. supr.

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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

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