Tierra Backpacker Jacket Review: A Packable Gore-Tex Shell With Pit Zips

Introduction

A waterproof shell only earns its keep if you actually carry it. The jackets that stay at home are usually the heavy, bulky ones, and the outcome is always the same: the rain arrives, the jacket is in the car, and the rest of the day is spent damp and cold. That is the problem the Tierra Backpacker Jacket is built to solve.

Tierra positions this as the world’s most packable Gore-Tex jacket, and that framing is not marketing fantasy. It weighs 345 grams, it scrunches down small enough to disappear into a backpack’s front stash pocket, and it is genuinely waterproof rather than merely water resistant. The price is £260, which puts it firmly in premium territory, so the sensible question is whether the specification earns that outlay.

This review covers what the jacket does well, where it asks you to compromise, and which kinds of trips it suits best. If you have ever abandoned a shell in a cupboard because it was too big to bother with, the details below are the ones worth weighing up.

Who This Jacket Is For

This is a shell for people who move through mixed weather rather than hiding from it. Walkers, hill goers and backpackers who want one jacket that covers most of the year will find the weight and packed size far easier to live with than a heavier, bulkier alternative.

It also suits anyone who layers heavily. The jacket has been worn through a full winter over light, mid weight and heavy fleeces, and it fits comfortably over an insulated jacket as well, so it works as an outer layer across a wide temperature range rather than only in mild conditions.

Finally, it is aimed at people who dislike stopping to dress and undress. If the rain comes and goes all day, the ability to keep one jacket on and adjust it as you go is worth more than any single headline specification.

Weather Protection Without the Bulk

The protection comes from a Gore-Tex Paclite membrane, paired with a PFC free durable water repellent finish on the outside of a 50D face fabric. That combination gives a strong strength to weight ratio for a shell this light. Seams are fully taped throughout, including the zips on the hand pockets and the side vents, so water has no obvious route in.

The front closure is a two-way zip with a storm flap behind it, plus a small button at the hem that lets you open the jacket from the bottom while keeping it fastened. The hem and cuffs are both adjustable, which matters more than it sounds: cuffs that seal properly are what stop water running down your sleeves.

In sustained rain the jacket has stayed completely dry inside, and the interior is fully taped as well. The result is a shell that behaves like serious weather protection while still folding down to roughly the size of a large apple in a pack.

Ventilation That Changes How You Wear It

The feature that matters most here is the pit zips. Large underarm vents make an enormous difference in practice, because they let you dump heat without removing the jacket or unclipping a pack. On days when rain arrives in short bursts, you can simply leave the shell on, put your pack over it, and regulate your temperature through the vents.

The hand pockets are mesh backed, so they add a second route for warm air to escape, and the two-way front zip gives a third option when you want airflow across the chest. Together these details turn the jacket into something you adjust constantly rather than something you take on and off.

This is also the reason the jacket copes with effort. A waterproof and breathable membrane reduces moisture build up, but it does not remove all of it, and hard climbing will always leave you warm inside a shell. Venting directly under the arms is the most effective way to manage that without losing protection.

Fit, Hood, and Everyday Details

The cut is genuinely well judged. The hood is fully adjustable and has a small stiffened peak, which keeps rain off your face without swallowing your peripheral vision. The neckline is lined with a soft fabric so it does not rub against your chin when the jacket is zipped to the top.

Small touches add up: the two-way zip and hem button, the adjustable hem and cuffs, and the hand warmer pockets. The fabric also picks up a slightly metallic sheen in certain light, which gives it a cleaner, less technical look than many shells in this category.

Packed size is the headline. The jacket folds into its own small bundle and sits happily in a front stash pocket, which means it comes along on short walks as readily as on multi day trips. When the rain starts, the quicker you can get it on, the drier you stay.

Things to Consider Before Buying

The price is the first thing to weigh up. At £260 this is a premium purchase, and Tierra is a Swedish brand whose gear tends to be built for longevity rather than for hitting a low price point. If you want the lightest possible shell, that trade off is the whole point; if you want maximum value per pound, cheaper options exist.

Breathability has limits, as it does on every waterproof jacket. Gore-Tex is genuinely breathable, but it does not let all moisture out, so a hard climb will still leave you damp inside, and stopping while damp can leave you cold. The pit zips are the practical answer to this, and they are the reason the jacket remains comfortable across a long day rather than only in short showers.

Two smaller points are worth noting. The hood peak is deliberately small rather than wide, which some people prefer for visibility and others find less protective in driving rain. And this is a lightweight 50D shell built around packability, so it is best thought of as an all round hiking jacket rather than a heavy duty abrasion focused outer layer.

Buying Advice

Buy this jacket if you want one shell that goes everywhere. Its combination of a 345 gram weight, a small packed size, fully taped Gore-Tex construction and large pit zips is genuinely rare, and it solves the real reason most waterproof jackets fail their owners: they are left behind.

It is also a sensible choice if you already own heavier insulation. The jacket layers cleanly over light and heavy fleeces and over an insulated jacket, so it can serve as the outer shell across most of the year instead of one piece of a crowded wardrobe.

The main decision is whether the premium price is justified for your use. If you hike, walk or backpack regularly in changeable weather, the packability and the ventilation are the two features you will notice on every single outing. If your trips are short and reliably dry, a heavier and cheaper shell will do the same job for less money.

Conclusion

The Tierra Backpacker Jacket is a convincing answer to a simple problem. It is fully waterproof, remarkably light at 345 grams, and small enough that carrying it never becomes a decision you have to make. The pit zips then keep it comfortable once it is on, which is what separates a jacket you tolerate from one you reach for by default.

The compromises are honest ones: a premium price, a small hood peak, and the inherent limits of breathable fabric on hard efforts. For regular hikers who want a single dependable shell, those trade offs are easy to accept. Once you have used underarm vents in real rain, going back to a jacket without them is hard to justify.