Simond MT900 UL 50L Ultra-light Trekking Backpack

Weighing only 880 g, this ultra-light backpack is engineered to provide exceptional comfort and ventilation for the longest and most demanding treks, whether you are off to hike the PCT (Pacific Crest Trail) or the GR20. It allows you to maximise your miles without adding unnecessary weight. Despite its minimalist design, this bag delivers uncompromised ergonomics and custom adjustability, making it an ISPO Award 2025 winner!

Carrying comfort and back adjustment

• Individual fit: The back section features an ultra-light snap hook adjustment system, allowing the backpack to be adapted perfectly to your specific back length from XS to L.
• Sturdy carrying: Equipped with built-in underwiring to keep the load optimally balanced, while the double-density foam straps save your shoulders from strain.
• Ventilation: A ventilated, stretch mesh back panel enhances air circulation, keeping your back cooler and drier.

Compact design and volume breakdown

• Storage and capacity: A total volume of 50.5 litres provides plenty of room for your gear, divided into a 39-litre main compartment, a 4.5-litre front pocket, and two 3.5-litre side pockets. It also features a practical inside zipped pocket for valuables.
• Volume compression: A flexible roll-top fastening combined with side straps allows you to compress and tighten the bag effectively.
• Quick hydration: Convenient flask access lets you grab your water bottle without putting the bag down. The backpack is also compatible with a 2 L water bladder (not included).

Load capacity and lightweight design

To achieve the low weight of 880 g for a 50-litre bag, Simond has utilized extensive knowledge of ergonomic carrying capacity to create a comfortable bag with a minimalist construction. Proven components, such as the specialized fabric and the metal frame, have been selected to ensure they are both exceptionally lightweight and highly durable.

• Ideal load: Optimized carrying comfort for an ideal weight of 10 kg.
• Maximum load: 12 kg (do not exceed this load limit).

Durability and materials

Even though this backpack is ultra-light, its materials are selected to withstand wear and tear on rugged trails.

• Fabric: Built with 100 Denier High Tenacity Polyamide featuring a more durable reinforced thread weave.
• Composition:
  • Main fabric & Yoke: 100.0% Polyamide
  • Webbing: 100.0% Polypropylene
  • Coating: 100.0% Polyurethane
  • Foam: 100.0% Ethylene Vinyl Acetate (EVA)

Technical specifications and origin

• Weight: 880 g
• Country of manufacture: Manufactured in the EU (Czech Republic)
• Warranty: 10 years

Care and storage instructions

• Cleaning: Hand wash only (maximum temperature of 40°C). Cleaning with a wet cloth is often sufficient.
• Drying: Dry in the open air. Do not tumble dry.
• Prohibited: Do not put this backpack in a washing machine. Do not dry clean, iron, or bleach.
• Storage: Store your rucksack in a dry, ventilated place away from direct light.

Responsible performance

At Simond, performance and responsibility go hand in hand, from the very first sketch. Built to last, our products must prove themselves through rigorous testing, both in the lab and on the mountain. In the lab, extreme conditions are simulated, and in the field, dozens of prototypes are pushed to their limits each season in the most demanding real-world environments.

Simond also prioritizes repairability and environmental impact through eco-design. Every product is developed with its full lifecycle in mind, minimizing waste, lowering our footprint and guaranteeing its repairability.