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Hardy 40: Ultralight Hiking and Trekking Pack with Carbon Frame

Hardy 40: Ultralight Hiking and Trekking Pack with Carbon Frame

★★★★★ 5/5 (40 reviews)
Customer review photo
★★★★★ Alondra

I haven't tried it yet, but it looks good. The side pockets are spacious enough for a 1-liter bottle, and the elastic cords on the front are really handy. My liquid soap bottle fits perfectly and stays securely in place. Right now, it feels comfortable just trying it on. I’m kind of short, so I’ll see how well I can adjust it once it’s fully packed, but so far it looks like a really good backpack.

$229.00
Taxes included.

Hurry! Limited Stock!

Expandable 40L Storage
External Storage Spaces
Ultralight: only 650 g to 670 g (1.43 to 1.47 lbs)
Water-Resistant UHMWPE Fabric
Maximum Back Ventilation
Ergonomic Design
Carbon Fiber Frame
Smart Access Storage
Anti-Tears and Abrasion
Can Carry up to 13 kg (28.6 lbs)
Ideal for Day Hike or Multi-Day Adventure
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With its versatile 40L capacity, the Hardy 40 gives you the freedom to pack everything you need while keeping a sleek, agile feel on the trail. Thanks to its ultralight UHMWPE-reinforced fabric and carbon fiber frame, you get the perfect balance of strength, stability, and reduced weight. Your gear stays protected without slowing you down. Its expandable roll-top design gives you flexible storage when you need extra space. The breathable back panel helps keep you cooler and more comfortable, while the ergonomic design reduces pressure. Whether you're heading out for a day hike, or a multi-day mountain adventure, you’ll move lighter, faster, and more comfortably every step of the way. Built for hikers who want to stay mobile and adventure-ready, the Hardy 40 helps you focus on the journey ahead.

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Why New Valberg?

30-DAY MONEY-BACK GUARANTEE

FREE TRACKED SHIPPING TO MOST DESTINATIONS

SECURE PAYMENT & DATA PROTECTION

2-YEAR WARRANTY

Customer Reviews

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It perfectly meets my expectations. The added double layer at the waist is a real plus and allows for a secure fit.

Kendall V.

Very light backpack and well made, good for ultralight hiking.

Ellie D.

Lightweight and great quality. Everything arrived ahead of schedule. 😊

Bianca J.

Really happy with this backpack so far. The quality looks excellent, there are plenty of external attachment points, and the fabric and stitching seem very durable. Can’t wait to test it on the trail.

Edwin B.

Exactly what I was looking for. The extra waist support is a nice touch and helps keep the pack snug and comfortable.

Jordyn T.

Erik S.

Looks great, everything is excellent. The package was well packed and arrived safely, although shipping was a bit slow. The backpack is fantastic, and I got the size L (I’m 6'1" and around 203 lbs).

Alondra P.

I haven't tried it yet, but it looks good. The side pockets are spacious enough for a 1-liter bottle, and the elastic cords on the front are really handy. My liquid soap bottle fits perfectly and stays securely in place. Right now, it feels comfortable just trying it on. I’m kind of short, so I’ll see how well I can adjust it once it’s fully packed, but so far it looks like a really good backpack.

View more reviews

Sizing & Fit Guide

Feature Hardy M (Standard) Hardy L (Tall)
Best For (Back Length) Torso: Under 50 cm / 19.68 in Torso: Over 55 cm / 21.65 in
Weight 1.43 lbs / 650 g 1.47 lbs / 670 g
Height (Max Open) 80 cm / 31.4 in 85 cm / 33.4 in
Dimensions (Base) 45 x 20 cm / 17.7 x 7.8 in 45 x 20 cm / 17.7 x 7.8 in

Note :We recommend measuring your back length from the C7 vertebra to the iliac crest (top of the hip) to select the Hardy size that best fits your body type.

Ergonomic Comfort

Hardy Backpack View
Durable, Practical and Light
Check ULTRALIGHT PERFORMANCE – Weighing only 650 g (M) to 670 g (L) (or 1.43 to 1.47 lbs), the Hardy 40 allows you to carry more while staying light, agile, and comfortable.
Check STRONG & DURABLE UHMWPE FABRIC – Built with UHMWPE-reinforced ripstop material for excellent tear resistance, abrasion durability, and reliable outdoor performance in demanding conditions.
Check COMFORTABLE UP TO 28.6 LBS LOAD – Designed to carry up to 13 kg (28.6 lbs) with enhanced stability thanks to its lightweight carbon fiber frame and ergonomic structure.
Check VERSATILE 40L STORAGE CAPACITY – The 30+10L expandable roll-top design adapts to day hikes or weekend trekking. Quick-access side pockets, spacious waist compartments, front mesh pocket, and front bungee cords allow optimal organization.
Check BREATHABLE & ERGONOMIC SUPPORT – Features ventilated back padding and lightweight shoulder support to improve airflow and comfort in hot weather.
Check READY FOR MOUNTAIN & OUTDOOR ADVENTURES – Ideal for hiking, trekking, alpine trails, fastpacking, and travel.
Check WEATHER-RESISTANT DESIGN – Quick-drying technical fabric performs well in wind, cold, light snow, and light rain. A rain cover is recommended for heavy downpours (not included).

Built to Support Every Adventure

From the very first miles with the Hardy 40 on your back, everything feels lighter. The trail flows more naturally beneath your feet, the mountain air feels sharper, and every step becomes easier to enjoy. Its ultralight design and breathable support let you move with freedom — carrying with confidence your gear, while staying fully connected to the world around you.

From quiet forest to windswept alpine ridges, from cool mornings touched by lingering snow to long summer hikes under open skies, the Hardy 40 keeps you comfortable, agile, and focused on the experience ahead. More well-being on the paths, more time to enjoy the journey.

Less Pressure, Better Balance

The Hardy 40 gives you the confidence to explore rugged mountain trails, forest paths, and changing outdoor conditions while protecting your gear along the way. Practical storage is always within reach thanks to the expandable roll-top opening, large stretch side pockets, front mesh compartment, and elastic front straps—making it easy to organize your essentials and access them quickly. The Hardy 40 is designed to carry up to 13 kg (28.6 lbs) without feeling weighed down on the trail. Its carbon fiber frame, adjustable shoulder straps, chest strap, and ergonomic waist belt work together to distribute weight. Its ergonomic design reduces pressure and fatigue during long hikes, helping you stay mobile, comfortable, and ready for your outings.

ADDITIONAL DETAILS +
Type: Ultralight Multi-Day / Fastpacking
Main Fabric: UHMWPE (Ultra-High Molecular Weight Polyethylene)
Internal Padding: Insulating IXPE Foam (Back Panel)
Frame: Integrated Carbon Fiber
Size Options: M (Standard Fit) or L (Tall Fit)
Dimensions M: 17.7 x 7.8 x 31.4 in | 45 x 20 x 80 cm
Weight M: 1.43 lbs | 0,650 kg
Dimensions L: 17.7 x 7.8 x 33.4 in | 45 x 20 x 85 cm
Weight L: 1.47 lbs | 0,670 kg
Max Load: 28.6 lbs | 13 kg
Brand: 3F UL GEAR

How to Choose Your Backpack

1. Pick Your Capacity
- Weekend (1–3 nights): 30–50 Liters
- Multi-day (3–5 nights): 50–80 Liters
- Extended (5+ nights): 70+ Liters
2. Prioritize Features

Focus on your specific needs for frame type, ventilation, and storage accessibility
3. Get the Perfect Fit
Sizing depends on torso length (not height) and hip circumference:
- Torso: Measure from your C7 vertebra (the bony bump at the base of your neck) down to the top of your hip bones (iliac crest).
- Hips: Measure around the top of your hips, where the pack's hip belt will sit.
Refer to the Sizing Chart above to match your measurements with our M or L variants.

FAQ

HOW DO I KNOW IF I SHOULD CHOOSE SIZE M OR SIZE L?

The main difference lies in the back panel height. If you are under 5'11" (180 cm), the Hardy 40 Size M (Standard Fit) is usually perfect. If you are taller than 5'11" or have a longer torso, the Hardy 40 Size L (Tall Fit) offers an extra 5 cm (2 inches) of frame height. This ensures the waist belt and shoulder straps align correctly with your anatomy for optimal weight distribution and less pressure on your back.

IS THE HARDY 40 TRULY WATERPROOF?

The Hardy 40 is built with a high-performance UHMWPE and Nylon blend. This technical fabric is designed to handle tough mountain conditions with ease.

Why it works for you:

  • Moisture Resistant: The fabric naturally repels water and absorbs very little moisture.
  • Quick Drying: If it gets wet, it dries significantly faster than standard materials.
  • Cold-Weather Ready: It maintains its strength and flexibility even in freezing temperatures.
  • Ultra-Durable: It offers superior abrasion resistance compared to classic nylon.

Whether you are winter hiking, trekking through light snow, or exploring high-altitude ridges, the Hardy 40 is a reliable companion for dry cold and light mountaineering.

Conclusion:

  • Moderate Rain: Your gear stays well-protected.
  • Heavy Tropical Downpours: For several hours of intense rain, we recommend using a rain cover to keep your essentials bone-dry.

WHAT IS UHMWPE?

UHMWPE (Ultra-High-Molecular-Weight Polyethylene) is a high-performance technical material widely used in premium outdoor and industrial equipment. It is considered safe for everyday use and is valued for its exceptional strength, durability, and lightweight performance.

It is much stronger and lighter than standard fabrics commonly found in backpacks.

How it improves the Hardy 40:

  • Lightweight & Strong: Helps keep the pack ultralight while still supporting demanding hikes and heavy use.
  • Excellent Abrasion Resistance: Better protection against rocks, branches, and rough terrain.
  • Low Moisture Absorption: The fabric dries quickly and does not easily absorb water.
  • Long-Lasting Performance: Designed to handle repeated outdoor use over time.

In short, UHMWPE helps the Hardy 40 stay light, durable, and comfortable for hiking and trekking adventures.

WHAT IS THE MAXIMUM LOAD I CAN COMFORTABLY CARRY?

The Hardy 40 is exceptionally rugged. For the best ergonomic experience and to maintain less pressure on your back, we recommend a maximum load of 28.6 lbs (13 kg). The integrated carbon fiber frame is specifically engineered to transfer this weight efficiently to your hips, ensuring stability even on the most demanding trails.

CAN THIS BACKPACK BE USED AS A CARRY-ON FOR FLIGHTS?

Generally, yes! The Hardy 40 is an excellent travel companion due to its versatile design. For most international and domestic flights, the Hardy 40 passes as a carry-on as long as the roll-top is cinched down. Unlike rigid suitcases, the Hardy 40's lack of a bulky metal frame (using a slim carbon fiber insert instead) allows it to be more "malleable" under seat or in tight compartments. Above all, always check your specific airline's dimensions before!

CAN I CHECK THE HARDY 40 AS HOLD LUGGAGE?

Yes, you can check it, even ifits lightweight nature makes the Hardy 40 much happier as a carry-on. We recommend taking a few simple precautions. 

Best practices for checking your bag:

  • Secure the Straps: Tighten all compression straps, the waist belt, and the chest strap to keep the profile as slim as possible.
  • Protect the Harness: If possible, place your Hardy 40 inside a lightweight duffel bag or a dedicated "flight cover." This prevents buckles or mesh pockets from getting caught in machinery.
  • Roll-Top Safety: Ensure the roll-top is tightly cinched and buckled to prevent it from snagging during transit.
  • Carbon Fiber Frame: The integrated carbon fiber frame is robust enough for normal handling, but as with any technical gear, avoid packing fragile items against the frame if the bag will be under heavy suitcases.

HOW DOES THE 30-DAY FREE TRIAL WORK?

Our 30-Day Trial period lets you test and fit of the Hardy 40 pack in the comfort of your own home.
How it works: You can fill the pack with your usual gear (up to 28.6 lbs or 13 kg), adjust the straps, and move around your home to test the weight distribution and frame comfort.
Conditions: To receive a full refund or exchange, the pack must be returned in new condition. This means:

  • Original tags and packaging must be intact.
  • No external signs of use (dirt, stains, odors, or pet hair).
  • The rain cover must be new and folded in its original packaging.
  • Return policy: If the pack isn't right for you, simply contact us within 30 days.

Please note that for returns of used items or items with missing packaging, a fee may apply and be deducted from your refund, or the return may be refused.

IS THERE A WARRANTY?

At New Valberg, your gear is built to last. We provide a 2-Year Warranty on all our backpacks, covering manufacturing defects and material failures to ensure you can explore with confidence.

What is Covered (Manufacturing Defects):

  • Structural Integrity: Any snapping, cracking, or abnormal deformation of the internal aluminum frame or support stays under normal use.
  • Seams & Stitching: Failure of load-bearing seams, including shoulder strap attachments and hip belt connections.
  • Hardware & Components: Malfunction of zippers, buckles, and tensioners that occur due to production flaws.
  • Material Integrity: Delamination of waterproof coatings or premature failure of the fabric weave not caused by external abrasion.


What is Not Covered:

  • Natural Wear and Tear: Gradual fading of colors, minor abrasions from trail use, or the natural thinning of mesh padding over time.
  • Accidental Damage: Tears, punctures, or burns caused by sharp rocks, thorns, campfires, or animal encounters.
  • Overloading: Damage resulting from exceeding the recommended carrying capacity (e.g., carrying more than 15kg/33lbs consistently).
  • Improper Maintenance: Damage caused by machine washing, harsh detergents, or improper storage (e.g., storing while damp, leading to mold).
  • Modifications: Any alterations made to the pack’s structure, straps, or frame by the user.


For claims and procedures, please refer to our full Refund Policy.

WHAT DOES SHIPPING PROTECTION COVER?

When you purchased Shipping Protection with your order, we guarantee to replace or refund any items that arrive damaged or defective. This protection also covers items lost or stolen during shipping, including cases where delivery fails due to an error in the shipping address provided by the buyer.

California Residents: This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.