6 Best Upf Shorts For Sunny Trail Days for Long Hikes

When the sun beats down on an exposed ridgeline, your gear becomes your primary line of defense against the elements. Choosing the right UPF-rated shorts isn’t just about comfort; it’s about ensuring you can stay out longer without the sting of a sunburn. Let’s look at the best options to keep you protected and moving efficiently on your next long-distance trek.

Disclosure: This site earns commissions from listed merchants at no cost to you. Thank you!

Why UPF Protection Matters for Long Trail Days

When you spend eight or ten hours above the treeline, standard cotton or thin synthetic fabrics often fail to block harmful UV rays. UPF (Ultraviolet Protection Factor) measures how much UV radiation reaches your skin, and on a long hike, even a small amount of penetration can lead to significant fatigue and skin damage.

Think of UPF-rated clothing as a portable, weightless sunscreen that doesn’t wash off with sweat. While sunscreen is essential for exposed skin, relying on it for your entire lower body is messy and requires constant reapplication. High-quality technical shorts provide a consistent barrier that keeps your skin cool and protected from dawn until dusk.

Key Features to Seek in Technical Hiking Shorts

Durability and moisture management are the two pillars of a great hiking short. You want a fabric that wicks sweat away from the skin rapidly, preventing the dreaded "chafing zone" that can ruin a multi-day trip. Look for four-way stretch materials, as they allow for a full range of motion when you’re stepping over deadfall or navigating steep, rocky switchbacks.

Storage is another critical factor often overlooked by beginners. A dedicated zippered pocket for your phone or a secure stash for a map ensures your essentials are always accessible without digging through your pack. Finally, prioritize a comfortable, low-profile waistband that won’t create pressure points under the hip belt of your backpack.

Patagonia Quandary 5": Best All-Around Performer

The Quandary 5" is the gold standard for hikers who want a "do-it-all" short that feels light but handles abuse. Its nylon/spandex blend is incredibly resilient, meaning it won’t snag on sharp granite or thick brush, yet it remains breathable enough for humid, low-elevation miles.

This short is perfect for the hiker who splits their time between maintained trails and occasional off-trail exploring. If you want one pair of shorts that transitions seamlessly from a long weekend in the backcountry to a post-hike stop at the local brewery, this is your best bet. It’s a reliable, no-nonsense choice for almost any environment.

Arc’teryx Creston 8": Best for Alpine Terrain

If your idea of a good time involves steep vertical gain and exposed, wind-swept ridges, the Creston 8" is designed specifically for you. The longer inseam provides extra coverage, while the articulated patterning ensures the fabric never binds, even when you’re executing high steps on a scramble.

The material is exceptionally light and dries in minutes, which is a massive advantage if you encounter afternoon mountain showers. If you prioritize technical performance and a streamlined fit for high-output days, the Creston is worth the investment. It isn’t the cheapest option, but for alpine enthusiasts, it’s a masterclass in fit and function.

REI Co-op Sahara Guide: Best Value for Hikers

The Sahara Guide shorts offer premium features—like a gusseted crotch for mobility and ample pocket space—at a price point that makes sense for those building their first kit. They are rugged enough for thru-hiking but comfortable enough for casual weekend jaunts.

These are an excellent choice for the hiker who wants durability without over-engineering. You get a functional, well-designed garment that doesn’t sacrifice quality for affordability. If you’re looking to maximize your gear budget without compromising on trail-readiness, these are the shorts to grab.

KÜHL Renegade 8": Best Durability for Scrambling

The Renegade is built for the "tough-on-gear" hiker who spends more time sliding down granite slabs than walking on dirt paths. The fabric is noticeably beefier than most, providing a level of abrasion resistance that is hard to match in a lightweight package.

Because of the heavier weave, these shorts are slightly warmer, making them ideal for shoulder-season hikes or high-altitude routes where the wind has a bite. If your adventures are defined by rough terrain and bushwhacking, the Renegade is the most durable tool for the job. You’ll appreciate the extra peace of mind when you’re navigating dense, thorny brush.

Black Diamond Valley 5": Best Lightweight Option

When the temperature hits triple digits, the Valley 5" is the relief you’re looking for. These shorts are exceptionally thin and airy, designed to disappear the moment you put them on, making them a favorite for peak-baggers and desert hikers.

Despite the minimal weight, they still offer the necessary UPF protection to keep you safe in the sun. They are best suited for high-exertion days where weight savings and maximum airflow are the absolute priority. If you hate feeling weighed down by heavy fabric, these are your go-to shorts.

Outdoor Research Ferrosi: Best Breathable Pick

The Ferrosi line is legendary in the outdoor community for its incredible breathability and stretch. These shorts feel like a second skin, moving with you so naturally that you’ll forget you’re wearing them even after twenty miles of trail.

They excel in hot, humid conditions where other fabrics might feel stifling or heavy with moisture. If you tend to run hot or are planning a trip through challenging, sweaty terrain, the Ferrosi is the gold standard for comfort. It is truly the most "forget-you-have-them-on" short in this list.

Essential Care Tips to Maintain Fabric Integrity

To keep your UPF-rated shorts effective, avoid using fabric softeners, which leave a residue that can clog the pores of the synthetic fibers and decrease breathability. Always wash them in cold water and, whenever possible, air dry them in the shade.

Direct, high-heat drying can degrade the elasticity of the fabric over time, leading to a baggy fit that causes chafing. By treating your gear with a bit of care, you ensure the technical properties—both the sun protection and the moisture-wicking—last for many seasons of heavy use.

How to Choose the Right Inseam for Your Hike

Choosing between a 5" and an 8" inseam often comes down to personal preference and the nature of your movement. A 5" inseam offers maximum freedom of movement, which is ideal for scramblers and those who prefer a less restrictive feel.

An 8" inseam provides more coverage, which can be beneficial for added sun protection or when you’re wearing a harness or a pack with a hip belt that might rub against your skin. Consider your specific terrain: if you’re doing a lot of high-stepping, go shorter; if you’re logging long, steady miles on flat trails, the extra coverage of an 8" can be quite comfortable.

Finding the right pair of shorts can transform your hiking experience, allowing you to focus on the vistas rather than your gear. Whether you prioritize durability for the rough stuff or breathability for the heat, there is a perfect pair waiting to hit the trail with you. Now, lace up your boots and get out there to enjoy the sunshine responsibly.