Serac 40

Weatherproof and agile all-season alpine pack for day and weekend trips

weatherproof, spacious main compartment with roll-top closure
fastening options for alpine/ski equipment
side access to large main compartment

Serac 40 L black

Prod. no. 7640277844063

Zipped pocket accessible from the outside for all kinds of important small items or quick access to sunglasses

Long side zipper for quick access to the main compartment

Generously sized front pocket for shovel, ski skins etc.

Ice axe attachment with side-release buckle for one or two ice tools

Snug ice axe fixation – classic method with webbing loop

additional volume thanks to roll-top closure

detachable components allow the backpack to be adapted to individual needs and activities

Lightweight, padded and removable hip pads (included with the 50 L, available separately for the 30 L and 40 L)

Skis can be carried diagonally

Lateral ski fixation

Product Description

The Serac 40 is a lightweight, minimalist and weatherproof alpine backpack for mountain tours - in any weather, whether summer or winter. It offers all the necessary features for a fully equipped winter alpine backpack and scores with more comfort in handling and organization. It is the perfect companion for alpinists looking for a versatile pack for any weather and mountain activity. The slightly larger volume also offers enough space for slightly longer tours.

The high-quality, waterproof ripstop nylon with a water column of 10,000 mm, taped seams, a roll-top closure and sealed zippers protect against moisture and snow. The white, PFC-free lamination inside provides the best overview.

The Serac not only offers a lot of volume in the front pocket but also an additional zippered pocket accessible from the outside for smaller items. Removable side compression straps and a new arrangement of ice axe loops and ski fixation facilitate the attachment of skis or ice tools. In addition, the backpack can be easily adapted to individual needs and the season.

The long, water-repellent zipper is located on the side of the backpack and allows quick access to clothing, gloves, the bottle, etc.. The simple, yet purposefully padded back design provides a close-to-body fit and direct load transfer. A removable, waist strap provides more support while carrying. A new, convenient tube outlet for a hydration system rounds out this versatile 4-season backpack.

The EXPED backpack line includes both waterproof and weatherproof models. Waterproof means these backpacks keep water out unless submerged in water. Weatherproof means that the fabric and seams are completely waterproof, but zippers and hydration ports are water resistant and not 100% waterproof.

All other backpacks in the EXPED line have coated fabrics to prevent water penetration. These backpacks do not have taped seams. Typically, other features such as durability or weight reduction are the focus of these products and are designed to be used with our waterproof drybags to keep the contents dry.

Waterproof Models: Whiteout, Black Ice, Torrent, Work and Rescue, Typhoon, Kids Typhoon, Cloudburst, Splash, Stormrunner, Tempest

Weatherproof models: Serac, Icefall, Mountain Pro, Cascade

The torso length is the length of a person's back, measured from the hip to the shoulder, and is an important factor in the fitting process of a backpack.

Depending on the volume of the backpack and its intended use, the suspension system of a backpack becomes a key criterion. Determining back length is not as critical for shorter hikes or everyday backpacks, but is crucial for expedition, trekking and touring backpacks. With these backpacks, the pack weight can only be optimally transferred to the hips if the back length and suspension system are correctly matched.

The center of the hip belt is ideally located on the hip bones (upper edge of the pelvis) and the sacrum to carry most of the load, especially with large internal frame backpacks. There are exceptions where a shorter backpack length is better, such as in alpine situations, because this allows a shorter overall length of the backpack suspension system to allow easier access to the climbing harness.

To determine your back length, use a tape measure to measure the distance from the top of your shoulders to the top of your hip bone (pelvic rim). This is best done by a friend who can properly place and read the tape measure on your back. Any EXPED retailer should also be able to help you determine your back length.

All backpack fabrics used by EXPED are by definition "waterproof" due to their coating and have a water column of at least 1500 mm. The distinction therefore relates primarily to construction and processing:

In "water-resistant" backpacks, water can enter the backpack through the seams and through the zippers.

We define "weatherproof" as backpacks with a water column of at least 3000 mm, which also have water-repellent zippers to the main compartment and seam-taped seams. Although the zippers are very water repellent, water can enter through the zipper during heavy rains.

Our backpacks labeled "waterproof" have a water column of 3000 to 10'000 mm, are also seam sealed or welded, but use water repellent zippers only on exterior compartments, not on the main compartment. The main compartment of these models have a waterproof seal by means of a roll top. In these models, we do not refer to exterior compartments with zippers as "waterproof", but only as "weatherproof". No rule without exception: A 100% waterproof Drysuit zipper is used on the Tempest Duffles.

EXPED measures the volume of its packs using standardized plastic balls. The volume declarations are exact. The external dimensions are measured at the widest point. Calculating volume based on dimensions can lead to different values.