REI Co-op Sahara Convertible Pants - Women's vs Fjällräven Vidda Pro Trousers W

Editorial Team
Last modified at May 28, 2026
Choosing the right hiking pants often comes down to a trade-off between comfort in warm weather and resilience in rough terrain. The REI Co-op Sahara Convertible Pants are designed for hikers who value adaptability, featuring a lightweight nylon-spandex blend that converts easily into shorts for changing temperatures. In contrast, the Fjällräven Vidda Pro Trousers W are built for longevity and protection, utilizing a durable cotton-polyester blend that withstands abrasion and can be waxed for water resistance. While both options share a 4.2/5 overall rating, they cater to distinctly different hiking styles and environmental conditions.

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REI Co-op Sahara Convertible Pants - Women'sFjällräven Vidda Pro Trousers W
REI Co-op Sahara Convertible Pants - Women's
Fjällräven Vidda Pro Trousers W
Inseam

28.5, 31, 34 in

Short, Regular, Long

Weight

12.7 oz

19.2 oz

Material Composition

96% recycled nylon / 4% spandex

65% polyester, 35% cotton

Belt Loops

Not specified

Yes

DWR Finish

Yes (PFAS-free)

No DWR; adaptable with Greenland Wax

Warranty

1 Year

Limited Lifetime Warranty

Pocket Count

6

6

Stretch Percentage

4%

No stretch

Waist Size

Not comparable - size chart dependent

EU 34-48 / US approx. 2-18

Four-Way Stretch

Stretch fabric; four-way stretch not specified

No

Gusseted Crotch

Not specified

Not specified

Water Repellent Finish

Yes (DWR)

Yes (via Greenland Wax application)

Roll-Up Legs

Yes

No; adjustable leg endings

Comfort

REI Co-op Sahara Convertible Pants - Women's

4.9/ 5.0

Fjällräven Vidda Pro Trousers W

4.4/ 5.0

Comfort on the trail is determined by how well a pant moves with your body and manages temperature during activity. The REI Co-op Sahara Convertible Pants excel here with a lightweight nylon-spandex blend that offers four-way stretch, ensuring full mobility without feeling binding or sticky even on long hikes. Buyers consistently praise the relaxed fit and elastic waistband, noting the fabric feels great whether scrambling over rocks or relaxing at camp. The Fjällräven Vidda Pro Trousers W are also described as incredibly comfortable with a relaxed fit that rides low on the hips, but the heavier G-1000 material can feel warm and restrictive in direct sunlight or during high-intensity efforts. While both are highly rated, the Sahara's breathability and stretch give it a distinct edge for active movement in varied temperatures.

Durability

REI Co-op Sahara Convertible Pants - Women's

3.4/ 5.0

Fjällräven Vidda Pro Trousers W

4.8/ 5.0

Durability is critical for hikers who frequently encounter thick brush, rocky scrambles, or abrasive surfaces. The Fjällräven Vidda Pro Trousers W are the clear standout in this category, constructed from the legendary G-1000 fabric with reinforced knees and seat that buyers say can last for six to ten years. Users report that these pants can take a beating against rocks and tree roots without tearing, making them ideal for rugged off-trail adventures. The REI Co-op Sahara Convertible Pants use a recycled nylon blend that is abrasion-resistant and holds up well on standard trails, but some users express concern that the lighter fabric may not withstand the same level of rugged wear over time. For those prioritizing long-term resilience and protection against the elements, the Fjällräven offers a significantly more robust solution.

Fit

REI Co-op Sahara Convertible Pants - Women's

3.9/ 5.0

Fjällräven Vidda Pro Trousers W

3.9/ 5.0

A proper fit ensures freedom of movement and prevents chafing or slipping during a hike. Both the REI Co-op Sahara Convertible Pants and the Fjällräven Vidda Pro Trousers W receive strong ratings for their relaxed, non-restrictive cuts that accommodate various body types. The Sahara features an elastic waistband with a button closure and internal drawstring, allowing for a personalized fit that stays secure without being too tight. Similarly, the Vidda Pro offers a relaxed fit with a thick belt and articulated knees, though the lack of stretch in the G-1000 material means sizing must be precise to avoid restriction. Since both products offer adjustable features and comfortable silhouettes that avoid bagginess, they are effectively tied in their ability to provide a functional fit for most hikers.

Breathability

REI Co-op Sahara Convertible Pants - Women's

4.4/ 5.0

Fjällräven Vidda Pro Trousers W

3.2/ 5.0

Breathability is essential for preventing overheating and managing sweat during warm-weather hikes or strenuous climbs. The REI Co-op Sahara Convertible Pants are highly praised for their lightweight fabric that allows air to flow freely, keeping the wearer cool and dry even in hot conditions. The moisture-wicking properties of the nylon-spandex blend ensure that the pants do not feel sticky or heavy, making them a top choice for summer trails. Conversely, the Fjällräven Vidda Pro Trousers W, while equipped with side zips for ventilation, are frequently noted to hold in heat and feel too warm for intense activity in full sunshine. Although the vents help release some heat, the thick, wind-blocking nature of the G-1000 fabric limits airflow compared to the Sahara, making the REI option superior for hot climates.

Weather Resistance

REI Co-op Sahara Convertible Pants - Women's

4.1/ 5.0

Fjällräven Vidda Pro Trousers W

4.3/ 5.0

Weather resistance determines how well pants protect against rain, wind, and moisture during unpredictable outdoor conditions. The Fjällräven Vidda Pro Trousers W offer superior protection, as the G-1000 fabric can be treated with Greenland Wax to become highly water and wind-resistant, capable of withstanding full-on rainstorms and cold winds. Users report that even when soaked, these pants dry quickly and effectively block the elements, making them suitable for a wide range of climates. The REI Co-op Sahara Convertible Pants feature a DWR coating that sheds light rain and damp conditions effectively, but they are not fully waterproof and may not hold up in heavy downpours. For hikers facing wet or windy environments, the Fjällräven's ability to be waxed for enhanced protection provides a clear advantage.

Versatility

REI Co-op Sahara Convertible Pants - Women's

4.8/ 5.0

Fjällräven Vidda Pro Trousers W

4.4/ 5.0

Versatility refers to a pant's ability to adapt to different activities, temperatures, and environments throughout a trip. The REI Co-op Sahara Convertible Pants are designed specifically for this purpose, with a zip-off design that instantly transforms them into shorts, allowing hikers to adjust to changing temperatures without carrying extra gear. Buyers love the convenience of having two pairs of pants in one, noting the ease of converting them on the trail. The Fjällräven Vidda Pro Trousers W are also highly versatile, suitable for everything from bushcraft and hunting to casual wear, thanks to their durable construction and multiple pockets. However, they lack the convertible feature and are less ideal for hot summer days, making the Sahara the more adaptable choice for hikers who need to switch between pants and shorts frequently.

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Conclusion & Final Verdict:

The choice between these two pants depends entirely on your hiking environment and priorities. If you prioritize lightweight comfort, breathability, and the ability to switch between pants and shorts on warm trails, the REI Co-op Sahara Convertible Pants are the superior choice. They excel in hot weather and offer unmatched versatility for changing temperatures. However, if you need rugged durability, wind protection, and long-term resilience for off-trail adventures or variable weather, the Fjällräven Vidda Pro Trousers W are the better investment. Their waxable G-1000 fabric and reinforced construction make them a tank for tough conditions, though they may feel too warm for intense summer hikes.

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