Ortovox Swisswool Piz Boè - Women's Review

The Ortovox Piz Boè is a lightweight jacket with a fitted slim shape and a balaclava-style hood. Its exterior is made of Pertex Quantum (100% polyamide) with stretchy fleece-lined panels and an elastic, non-adjustable hem. It has two zippered torso pockets with mesh interiors for added ventilation.

Performance Comparison

Warmth

Prized for its breathability, the Piz Boè isn't as warm as many of the other jackets we tested. Its insulation is warm but thin, with breathable panels shedding heat in key areas. After considering the thinness and ventilation of the Piz Boè, it still offers good warmth for its intended use, which is performing moderate to high output activities in cold weather. It's a slim fit that runs smaller than just about any other model we tested, offering a more contoured fit with less room for drafts. A full-length wind guard runs behind the main zipper to ensure that it's not a weak point when you need protection.

The bottom hem isn't adjustable. Instead, it's entirely elastic and fits snugly around or just above the hips. This helps to make sure you're warm inside, no matter how the wind may howl. The cuffs are similarly fitted, made of a snug (but not tight) stretch-knit that handily seals your wrists against the freezing air. The hood is very fitted and in the style of a balaclava, with a tall chin that's easy to bury the bottom half of your face in. It's possible to wear over a thin beanie, but there isn't a lot of extra room for heat loss inside the Piz Boè's hood.

Comfort

If the Piz Boè fits your body type, it's very comfortable to wear. It runs smaller than any other jacket we tested. This is by design, as it's meant to be worn over thin base layers that also facilitate breathability. However, it's also limiting to curvier and more diverse body shapes that may not so easily fit into a slim jacket. But for our testers who fit that body type, wearing the Piz Boè is superbly comfortable. It's thin and flexible with mobility features in all the right places and wears more like a sweatshirt jacket than a puffy coat.

The stretch-knit cuffs are silky soft against the skin. Panels of stretchy, breathable knit material (with fleece interiors) comprise a majority of the armpit area and stretch back along the scapula, making this one of the most flexible and mobile jackets we've had the pleasure of testing. A slight drop hem adds coverage when biking or otherwise bending over. The pockets seemed strange at first, but we grew to love and appreciate their utility. With zippers alongside the main zipper of the jacket, the pockets open laterally. That is, the pocket on the left side opens toward your left arm and is best accessed with your right hand, and vice versa. While this precludes the comfy hands-in-pockets walking around vibe, it makes them exceptionally easy to use while running or while wearing a backpack. They're also fairly long pockets that easily accommodate an oversized smartphone without forcing it to stick out awkwardly while digging into your breast. In short, they are perfectly designed for on-the-go use, maximizing comfort and utility.

Weather Resistance

Another mixed bag for the Piz Boè is its weather resistance. All the portions of the jacket covered in Pertex Quantum fabric are remarkably wind and water resistant. Neither precipitation nor cold gusts noticeably penetrated the majority of this jacket. The main zip wind guard, as well as the tightly fitted balaclava hood, also add protection.

However, the breathable panels don't offer the same protection. Both the underarm/scapula panels, as well as the cuffs/wrists, provide large swaths of fabric that is permeable to both wind and water. The fleece-lined arm and back panels provide slightly more resistance, as their interiors are lined with fleece, but sustained exposure to precipitation will eventually soak through. The cuffs lack that lining and more readily transfer water through to your wrists. However, the Piz Boè isn't meant to be a weather protection shell, and its weak points are in areas that are at least moderately protected (underarms and undersides of the wrists).

Weight and Compressibility

The size Small we tested weighs 10.4 ounces, which is below average for our lineup of insulated jackets. It's a smaller jacket overall, and though lightweight, feels a bit dense compared to others.

The Piz Boè doesn't pack into any of its own pockets like so many of its competitors do. However, this is a layer that's meant to be worn and simply vented rather than removed. It's not an ideal emergency layer you might pack "just in case" — it's the jacket you wear the whole time you're out adventuring in the world. So we're not too concerned with its inability to pack into its pocket.

Breathability

It is hard to envision a more breathable insulated jacket than the Piz Boè. All the reasons it's outperformed in warmth and weather resistance are due to its impressive breathability features.

Not only are the thin cuffs breathable, but a V of the same fabric extends nearly 7 inches up the underside of your wrists, further increasing its breathability. The extensive armpit and shoulder panels performed admirably when put to the task of regulating body temperature in trying conditions. And if all that isn't enough, the pockets, with their midline zippers and fully mesh interiors, are extremely effective vents.

Should You Buy the Ortovox Piz Boè?

If you're a winter thrill seeker who has often left all your puffy jackets at home even on cold mornings in the single digits, the Piz Boè is for you. It's an expensive jacket that isn't the right choice for serious warmth when just hanging out, but it's a dream come true for those of us who love heading out for a workout and an expedition no matter the weather. If your top priority is serious breathability, there is no better option than the Ortovox Piz Boè.

What Other Insulated Jackets Should You Consider?

If you've been sweating while wearing other insulated jackets all winter, the unparalleled breathability of the Piz Boè is well-positioned to be your new favorite cold weather layer. If your adventures tend to be more on the mild side and you want breathability but still need warmth for times spent at rest, the Arc'teryx Atom may be a more protective — but still breathable — layer for you. On the other hand, if your adventures tend to be multiday and you need a highly packable and versatile jacket, you may consider the lightweight Mountain Hardwear Ghost Shadow.