Summer running has a way of exposing weak gear fast.
When temperatures climb in Colorado, the easy miles stop feeling easy. Trail climbs feel steeper. Road workouts feel hotter. And anything that traps sweat, clings to your skin, or adds unnecessary weight becomes a problem by mile two.
That’s where the Tracksmith Meridian Collection comes in.
We tested the Meridian Shorts and Meridian Tee through hot summer runs in Colorado and dry desert miles in Utah. The goal was simple: see whether this lightweight kit could keep us comfortable when the weather was working against us.
It did.
Made for the Heat
The Meridian Collection is clearly built around one idea: keep air moving and moisture moving out.
Both the tee and shorts use an ultralight 83% nylon, 17% spandex fabric with four-way stretch, moisture-wicking performance, and Tracksmith’s VentAir® technology. In real-world terms, that means the fabric feels airy, soft, and noticeably resistant to that sticky, heavy feeling that can happen when sweat starts building.
On exposed Colorado trails, the Meridian Tee stayed light and comfortable even as the sun got higher. In the Utah desert, where shade can be hard to come by and the heat feels immediate, the shirt’s UPF 50+ protection was a major plus.
It’s not just breathable. It feels built for the kind of summer running where the forecast says “probably too hot,” but you lace up anyway.
The Meridian Tee: Light, Soft, and Non-Clingy
A good summer running shirt should almost disappear once you start moving. The Meridian Tee gets close.
The fabric is buttery soft without feeling delicate, and the bonded hem and merrow stitching give it a clean, low-profile feel. It moves well on road runs and trail runs alike, with enough stretch that it never feels restrictive when climbing, descending, or reaching for bottles and snacks.
The biggest win is how it handles sweat. Instead of sticking to your torso, the fabric continues to breathe and move moisture away from the skin. That matters when you’re trying to keep your rhythm in hot conditions.
The Meridian Shorts: Minimal Feel, Maximum Storage
Split shorts are usually built for speed, not storage. The Meridian Shorts manage to do both.
They’re ultralight, breathable, and cut for high-output efforts, but the surprise is the pocket system. With eight discreet pockets and a shirt loop, they carry more than you’d expect without feeling bulky.
For road runners, that means gels, keys, and a phone can stay secure without needing a belt. For trail runners, the pockets are great for small essentials on shorter efforts when a vest feels like overkill.
The liner is another highlight. It’s soft, light, and supportive without feeling compressive. Bonded hems and liner stitching help reduce chafing, which becomes especially important when sweat, dust, and heat start piling up.
Colorado Heat, Utah Desert Testing
Colorado summers can be deceptive. Morning miles start cool, then quickly turn hot once the sun hits the trail. The Meridian kit handled those temperature swings well, especially on runs where effort levels changed between climbs, flats, and descents.
Utah was the more demanding test. Desert running brings dry heat, direct sun, and very little margin for uncomfortable gear. The Meridian Collection felt purpose-built for that environment. Light fabric, UPF 50+ coverage, and moisture management all worked together to make hot miles feel more manageable.
No kit makes summer heat easy. But the right kit helps you keep moving.
The Verdict
The Tracksmith Meridian Tee and Meridian Shorts are built for runners who don’t wait for perfect weather.
If you’re training through hot Colorado afternoons, logging desert miles in Utah, or simply trying to stay consistent when summer temps rise, the Meridian Collection is a strong choice. It’s lightweight, breathable, sun-protective, and comfortable enough to keep the miles turning when everything else is telling you to stop.
For trail runners and road runners chasing summer fitness, this is exactly the kind of gear that earns repeat use.
Technical Specs at a Glance
Meridian Tee
- Fabric: 83% Nylon, 17% Spandex
- Weight: 125 gsm
- UPF: 50+
- Features: Four-way stretch, moisture-wicking fabric, VentAir® technology, bonded hem, merrow stitching
Meridian Shorts
- Body Fabric: 83% Nylon, 17% Spandex, 125 gsm
- Lining Fabric: 70% Nylon, 30% Elastane, 55 gsm
- UPF: 50+
- Features: Four-way stretch, moisture-wicking fabric, VentAir® technology, soft liner, bonded hems, 8 pockets, shirt loop