RipZip™ Access — Fast, Vertical Entry The RipZip™ opening system allows quick vertical access to the main compartment without unloading from the top. It’s ideal for grabbing mid-pack gear on the move — layers, snacks or gloves — helping you stay efficient and keep momentum on steep, fast-moving mountain days.
What Is the YETI Skala 40L Hiking Pack?
The Skala 40L Hiking Pack is engineered for ambitious day-long excursions where extra layers, food, safety gear and technical equipment demand both space and structure. Sitting between minimalist daypacks and full expedition systems, it delivers true load support without excessive bulk.
Designed to maintain balance on steep gradients and uneven ground, the Skala™ 40L integrates a lightweight AlumaLite™ frame with micro-adjust fit tuning and load lifters for precise weight distribution. Quick-access RipZip entry, stretch hydration holsters and intelligent pocket placement ensure gear remains organised and accessible throughout long trail days.
Best For
- Long, gear-heavy day hikes
- Summit pushes
- Technical mountain terrain
- High-mileage trail days
- Fast-and-light missions requiring structure
Materials & Construction
Guardcore™ 420 HD Nylon Exterior
The main body is constructed from 420 HD nylon, finished with a durable carbonate coating that enhances weather resistance without adding significant weight. This fabric is selected for its high abrasion resistance and structural durability, allowing it to withstand contact with rock, brush and repeated trail use. The balance of toughness and weight efficiency makes it ideal for high-mileage day missions.
210D Nylon Birdseye Dobby with UHMWPE Reinforcement
High-wear zones are reinforced using 210D nylon birdseye dobby woven with UHMWPE (Ultra-High-Molecular-Weight Polyethylene) fibres. These fibres dramatically increase tear resistance and structural strength while remaining lightweight. This targeted reinforcement improves longevity in stress points such as lower panels and compression zones without making the pack overly rigid.
90D x 300D Nylon/Poly/Spandex 4-Way Stretch Fabric
Exterior stretch pockets are built from a premium 4-way stretch fabric blend that combines nylon durability, polyester stability and spandex elasticity. This allows pockets to expand securely around water bottles, layers or quick-access items while maintaining excellent recovery and a clean, streamlined profile when empty.
Urethane Foam & Spacer Mesh Back System
The backpanel and harness utilise urethane foam for structured cushioning, layered with breathable spacer mesh. This construction enhances comfort during extended wear while creating airflow channels that help regulate temperature and reduce moisture build-up against the body.
YKK AquaGuard No.10 Zippers
Large-gauge YKK AquaGuard zippers are coated for improved weather resistance. Their robust construction ensures reliable closure strength under tension while helping prevent moisture ingress in light rain or wet conditions.
What Are Its Features?
AlumaLite Internal Frame
The lightweight AlumaLite frame provides structural backbone to the pack, transferring load efficiently to the hips and shoulders. It maintains vertical stability while flexing naturally with your stride, reducing fatigue and improving balance on steep or uneven terrain.
Micro-Adjust Harness System
The adjustable harness allows fine-tuning across a broad torso range. A properly dialled fit improves weight distribution, minimises pressure points and ensures the pack remains centred even during technical movement.
Load Lifters
Integrated load lifter straps allow you to pull the upper portion of the pack closer to your body. This shifts the centre of gravity forward, improving posture and reducing backward pull during climbs or when carrying heavier gear.
Vented Mesh Back Panel
The ventilated back panel creates an air channel between your back and the pack body. This airflow helps manage heat and moisture build-up, improving comfort during sustained exertion or warm-weather hiking.
RipZip Opening System
The vertical RipZip opening provides wide, rapid access to the main compartment. Instead of digging from the top down, you can open the front panel to quickly locate mid-pack items such as rain layers, gloves or navigation tools.
Stretch-Woven Hydration Holsters
Durable stretch side pockets hold water bottles securely while maintaining shape retention when not in use. Designed for accessibility, they allow quick hydration stops without removing the pack.
Organised Storage System
Multiple internal and external pockets keep essentials separated and stable. From safety kits and cookware to sunglasses and headlamps, gear stays organised so retrieval is efficient — especially during long, demanding days.
Features Summary
- 40L capacity
- AlumaLite internal frame
- Micro-adjust harness system
- Load lifters
- Vented mesh back panel
- RipZip wide-access opening
- Multiple internal & external pockets
- Stretch hydration holsters
- Guardcore nylon construction
- YKK AquaGuard No.10 zippers
Skala Backpack ReviewWe’ve taken the Skala out on steep local climbs and long, up-and-down ridge days to see how it really carries and it feels properly mountain-ready. The frame gives it structure without stiffness, so the weight stays stable when you’re scrambling or pushing pace uphill. It sits close, doesn’t sway, and feels balanced even when fully loaded. If you’re planning summit days or technical hikes where support matters, this is the kind of pack that quietly does its job and lets you focus on the terrain ahead.
AlumaLite™ Frame The lightweight internal frame transfers weight efficiently to your hips and shoulders, improving balance and reducing fatigue on steep, uneven ground. It delivers real mountain stability without unnecessary bulk.
Ventilated Carry System A breathable spacer mesh back panel creates airflow between you and the pack, helping regulate temperature during sustained climbs and high-output hiking days.
FAQ
Is the YETI Skala 40L suitable for overnight trips?
Yes. With 40 litres of capacity, the Skala 40L is ideal for long mountain days and lightweight overnight trips where you need space for extra layers, food, and sleep essentials.
Does the Skala 40L have an internal frame?
It does. The AlumaLite™ internal frame provides structured support and efficient weight transfer, helping you stay balanced and comfortable when carrying heavier loads.
How much weight can the Skala 40L carry comfortably?
Thanks to its frame, load lifters and adjustable harness system, the Skala 40L handles moderate-to-heavy day loads comfortably. It’s built for stability on steep, uneven terrain.
Is the Skala 40L waterproof?
The Guardcore™ nylon fabric is highly durable and weather-resistant, but not fully waterproof. For prolonged heavy rain, we recommend using a pack liner or rain cover.
Does it offer back ventilation?
Yes. The ventilated spacer mesh back panel promotes airflow and helps reduce heat build-up during sustained climbs and high-output hiking.
Is 40L too big for a day hike?
Not necessarily. If you carry extra kit, winter layers, climbing equipment or photography gear, the 40L offers useful flexibility without feeling oversized thanks to its close, stable carry design.
Is the Skala 40L suitable for scrambling and technical routes?
Yes. The structured frame, load lifters and secure fit system help keep the pack stable during steep ascents, rocky terrain and more technical movement.
Is the Skala 40L unisex?
Yes. The micro-adjust harness system accommodates a wide range of torso lengths, making it suitable for different body types and fit preferences.