Decathlon Trek 100 Compact Down Hiking Jacket for Women Review: An $80 Layer That Packs Into Its Own Pocket

Introduction

A good down jacket does not have to cost a fortune, and the Decathlon Trek 100 compact down hiking jacket for women is a clear example of that. It sits at $79.99, carries an 800 fill power down insulation, and folds away into its own left hand pocket. For a piece of gear that disappears into a backpack, that combination is hard to argue with.

This is a simple jacket by design. There are no internal pockets, no adjustable hood, and no complicated feature list. What it offers instead is a light, packable insulation layer built around a comfort rating of 23°F to 41°F, with a fabric treatment that sheds light moisture. It has been worn across several months of hiking, camping, backpacking and everyday errands, and the picture that emerges is a straightforward one: an affordable layer that does the basics well.

Who This Product Is for

This jacket is aimed at anyone who wants a warm, light insulation layer without spending premium money. Because the comfort rating was established with the jacket worn over a long sleeve t-shirt and a fleece, it is best understood as a third layer rather than a standalone winter coat. If you already own a decent base layer and a mid layer, this slots in neatly above them.

It suits hikers, campers and backpackers who count grams, and it also works well for cold-weather errands around town. The available color range is broad for the price, spanning navy, pink, blue, yellow and brown, so there is room to match it to the rest of your kit or simply to your taste.

Main Strengths

The headline number is the 800 fill power down, which is a genuinely high fill rating for a jacket in this price bracket. High fill power means more loft for the weight, and it shows: a size small comes in at 9.7 ounces. For the warmth it provides, that is a very light package to carry.

Construction quality is solid throughout. The main fabric and lining are both 100 percent polyamide, the down content is 85 percent grey duck down, and the zippers are YKK, which are notably smooth in use. The shell has been treated to be water repellent, though not waterproof, so light drizzle and damp trail conditions are manageable while sustained rain is not. Other practical touches include a wind block behind the zipper, horizontal baffles across the body, two unlined hand pockets, an adjustable drawstring at the hem and a hang loop inside the collar.

The self-stuffing design deserves a mention of its own. The jacket folds into its left hand pocket fairly easily, which keeps it self-contained in a pack and removes the need to carry a separate stuff sack. A small logo on the arm keeps the look understated rather than branded.

Things to Consider Before Buying

Sizing is the one real caveat. Decathlon clothing tends to run small, and this jacket follows that pattern. The practical advice is to size up, particularly because it is intended to be worn over other layers. If you normally take a small in most outerwear, a medium is likely the better choice here.

Two other details are worth knowing before ordering. The hood is non-adjustable, so it stays as it comes rather than cinching down in wind. The two hand pockets are unlined, which keeps weight low but means they offer less warmth for cold hands than a lined pocket would. The comfort rating also assumes a layering system beneath the jacket, so it should not be read as a standalone temperature claim.

Buying Advice

At $79.99, this jacket competes on value rather than features. The 800 fill power down, the 9.7 ounce weight in a size small, the smooth YKK zippers and the packability are the reasons it holds up, and free shipping and free returns lower the risk of ordering a size that does not fit.

The sensible approach is to treat it as a third layer in a system you already own, order one size up from your usual fit, and use it for three-season hiking, camping and everyday cold-weather wear rather than deep winter exposure. Readers who want maximum warmth for minimum weight at a modest price will find the trade-offs easy to accept.

Conclusion

The Decathlon Trek 100 compact down hiking jacket for women performs well for what it is: a light, packable, genuinely affordable insulation layer. It is not the most feature-rich jacket on the market, and the sizing requires attention, but the core specification is strong and the build quality is better than the price suggests. For hikers and campers who want a dependable down layer without a premium outlay, this is an easy one to recommend.