Forclaz Trek 500 Zip-Off Hiking Pants Review

Overview

The Forclaz Trek 500 Zip-Off is Decathlon’s convertible trekking pant: stretch nylon, side zips that let the legs come off without removing shoes, and darker water-repellent panels on the seat and the front of the legs. It is aimed at hikers who want one garment to cover a cold morning and a hot afternoon. The trade-off is weight. At 460 g it is a trekking pant first and a gram-counter’s pant a distant second.

Key Specs

Spec	Detail
Weight	460 g
Main fabric	94% polyamide, 6% elastane
Reinforced panel fabric	88% polyamide, 12% elastane
Lining	100% polyester
Water repellency	Front and rear reinforced panels
Conversion	Side zips; legs detach without removing shoes
Pockets	2 zippered drop pockets, 2 zip thigh pockets (one with mesh insert)
Belt	Included

Performance

Conversion. The side zips are the pant’s defining feature. Because they run the length of the leg, the lower sections come off over boots or trail runners, which matters on a ridge where the temperature swings as the sun clears a col. The trade-off for any zip-off design is the same: the zips and seams sit at thigh level, and the leg pieces are one more thing to carry once detached. In shorts mode they ride in a pack pocket or on a hip-belt loop.

Fabric and drying. The 94/6 polyamide-elastane blend is a stretch woven rather than a stiff canvas. Buyers of Decathlon’s Trek 500 pants consistently praise the drying speed and breathability. One owner who wore them on a 183 km stretch of the Camino in hot weather said they stayed cool and were dry by the next morning. Another tested them in a howling gale over merino long johns and reported that water beaded off and the fabric dried fast.

Water repellency. Only the reinforced panels, front and rear, carry the repellent finish. That is a deliberate choice: the areas that meet wet grass, damp rock, and wet seats get protection, while the rest of the pant stays light and breathable. The panels are a darker shade than the body fabric, so the pant’s wet-weather logic is visible on the trail. This is a shower-and-dew finish, not rain protection. A reviewer from Indiahikes who took the Trek 500 through snow, scree, stream crossings, and slush noted that it handled everything except actual rain.

Pockets. Two zippered drop pockets, two zip thigh pockets, and a mesh insert in one of them make this pocket-rich by trekking-pant standards. Zippers keep a phone, permit, or lighter from escaping during scrambles. Some buyers say the cargo pockets could be larger; one fit a pair of gloves but not much more. Comments about pocket design are among the more common reservations in owner feedback.

Fit. Owners mostly describe the sizing as true to size. A minority report problems with the cut, and one buyer who wore them to Everest Base Camp called the crotch too tight. The stretch panels help, but anyone between sizes or with a fuller build should try them on. A belt is included, so no extra cord or webbing is needed to keep them up under a hip belt.

Durability. Owner reports are positive on daily trekking use, and the added elastane in the reinforced panels is a sensible choice for the seat and knees. The 100% polyester lining is not a feature that gets much comment from owners. None of this will match the abrasion resistance of heavy canvas, but the pant is built for trails, not for bushwhacking.

Pros & Cons

Pros

• Legs zip off over footwear, so no stopping to untie boots
• Stretch fabric dries fast and breathes well, according to owners
• Water-repellent panels placed where they matter: seat and front of legs
• Four zippered pockets plus belt included
• Strong owner ratings: 4.6 out of 5 across 106 ratings on one retailer

Cons

• 460 g is heavy by ultralight standards, and the detached legs add pack clutter
• Water repellency is partial and does not replace rain pants
• Cargo pockets are smaller than some buyers expect
• A minority of buyers report a tight crotch or inconsistent leg fit

Who Should Buy This

Hikers on three-season trails with swinging temperatures will get the most from it: alpine routes, shoulder-season treks, or long walks like the Camino where mornings are cool and afternoons are hot. It also suits travelers who want pockets that zip shut. Buyers who prioritize base weight over versatility should skip it. A dedicated pair of lightweight shorts and a separate wind or rain layer will usually weigh less than a single 460 g convertible pant. People who expect rain protection from the repellent panels should also look elsewhere.

Verdict

The Trek 500 Zip-Off is a well-designed, practical convertible with sensible panel placement and strong owner satisfaction, held back only by its weight and a cut that does not suit everyone. It is a good choice for variable-weather trekking and a poor one for a sub-10-lb base weight.