Sac à dos - FastTrail 40LSac à dos - FastTrail 40L


  • Made in Quebec

  • Ultralight

  • Eco-friendly

  • Tailor-made


Our FastTrail backpack is the least bulky of our “long hikes” range . It is ideal for hikes of a few days or for the most seasoned hikers who are used to lightening the weight of what they take as much as possible. Mount Trail backpacks are ultralight and durable. The FastTrail model can follow you in the desert as in the high mountains, in the rain as in full sun!

The backpack is minimalist. However, it has the main and essential functions you need for your hikes. It is easy to climb mountains with little weight behind your back. There is a light structure inside the backpack which is removable. 

Your perfect backpack for adventure! 


- Our bags are made of 2.92 oz / sqyd Dyneema® Composite Fabrics (cuben fiber) Hybrid, which makes them lighter than all of our competitors' backpacks. 

- The bottom of our bags is made of 2.92 oz / sqyd Dyneema® Composite Fabrics (cuben fiber) Hybrid for more resistance. 

- Our exterior pockets are breathable, robust and ultra-light. They do not tear during friction on rocks or trees. 

- Une structure en aluminium interne permet le transfert du poids du sac sur vos hanches. La structure peut être facilement enlevée au besoin.- Les bretelles du sac à dos et la ceinture ventrale sont fabriquées à partir de mousse respirante pour vous apporter confort et respirabilité. 

- The closure of the backpack is foldable which makes it waterproof. 

- The waist belt is adjustable. Belts can be changed as needed. 

All our products are guaranteed for 2 years. 


Material : Dyneema® Composite Fabrics (cuben fiber) Hybrid

Poached :

Closing : folding closure

Raincoat : Yes

Structure : 2 light and removable aluminum bars

Environmentally friendly : Yes

Manufacturing : Quebec

Ideal : Camping, long hikes, thru-hikes


You can measure your size yourself. Take a meter of sewing! You can also measure yourself with a ruler and a long wire. 

Cut : Measure from your feet to the top of your head.

Width : Take the measurement of your size. To do this, measure your height 10-15 cm above your hips.


Mount Trail warrants all of its products for 2 years. Our equipment is designed to be durable and meet your needs. We test our products under extreme conditions. For more information, see our policies:   click here .


We offer a repair service free . Please contact us at: with the subject: " Repair Our team will work with you to find the ideal solution. For more information, see our repair page: click here .


We offer products tailored and custom . We have technical skills to make the products that best suit your needs and your constraints.

For more information, see our tailor-made page: click here .

Tips & Advice

Our ultralight backpacks allow you to reduce the weight on your shoulders while bringing the necessary equipment. It is important to choose your backpack carefully according to the size of your bust and your size.

At Mount Trail, our philosophy is to offer backpacks minimalist and tailored . We focus our design on all the features necessary for long hikes, day hikes, thru-hikes or any other outdoor activity. We are fans of ultralight and minimalist backpacks. The design of our bags was created to meet your needs, while making them very versatile.

Our research philosophy of ultra lightness is not limited to your backpack. You can intelligently minimize the weight of your backpack carrying only what is necessary. The heaviest items (excluding water and food) are the backpack itself, the tent and the sleeping bag. Weight is an important element to take into account. Minimizing the weight of your backpack does not mean reducing your comfort. On the contrary !

The Mount Trail team