The Black Diamond Women’s Lightwire Short Sleeve Tech Tee has quickly become my workout go-to. The thin polyester knit on this shirt gives it a light, loose, and free feeling shirt for any activity. I have worked this shirt hard in the gym, on long runs, and shorter dog walks on sunny days. The lightweight and quick drying benefits of this tee make it an easy pick for me when deciding what to wear for my activities. Black Diamond has done a great job designing a tee that functions well in activity and fits so well you don’t even think about what you’re wearing.
Black Diamond Women’s Lightwire Tee Features:
- Quick dry moisture-wicking and anti-odor finish
- Reflective logos
- Raglan sleeve construction for comfort under pack
- Weighs in at 95 grams
- Stretch Polyester Knit (88% Recycled Polyester, 12% Polyester, 108gsm)
- $69 MSRP
A true go-to performance tee
Like I said in the intro, this tee has worn well for long sweaty trail runs, slow dog walks, techy mountain bike rides, and as a layer under long sleeves. I’ve used it throughout this strangely warm PNW spring, where temps have ranged from the chilly 50’s to nearly touching 80 on some days. It thrives in the hot weather.
I got a size small for this tee. I tend to fit right between and medium and small for most tee shirts. The Lightwire is an active fitting tee, the leans loose and more boxy than fitted. This is a great cut for my body and fit preferences. This shirt fits athletically without clinging too tightly for activities where you want some flexibility and wiggle room.

There is not too much more to say about a tee shirt. This piece truly has all I want in active wear — the cut and fit are great for strong athletic bodies. Black Diamond does a good job fitting their women’s clothing in a way that just works well for the real bodies that wear them. The fabric feels soft, moves with you, quick dries, and looks slick. The color options are simple (just three solid choices) and easy to pair with other athletic clothing.

The main downside I have experienced with this piece is that the fabric can cling to my spandex shorts that I wear for long runs. This is truly a minor issue and probably more of a personal preference rather than a downside of the piece. Similarly the light fabric can be a little see through once sweat through on big efforts. This does not bother me too much, but if you catch me on a sweaty run you might see my sports bra shining in all her sweaty glory.
Fit: I’m 5’7” 150 lbs. and the women’s size small fits me great.
Buy Now: Buy from Black Diamond
The Bottom Line
Versatile and Cute
The Black Diamond Women’s Lightwire Short Sleeve Tech Tee has become a reliable go-to for a wide range of activities, from gym workouts and trail runs to casual dog walks. It’s lightweight, quick-dry fabric feels soft and breathable, making it comfortable during long hard efforts. The relaxed, athletic fit offers freedom of movement without feeling restrictive, white features like the raglan sleeves and breathability that add practical performance details. Though the thin fabric can be a little clingy to spandex shorts and become slightly see-through when soaked with sweat, it remains versatile and will be a tee that I continue to reach for when dressing for my activities.
The Good:
- Quick dry on this shirt is great!
- Lightweight and breathable
- Simple easy color options
The Bad:
- Clingy when paired with spandex
- Can be see-through when wet
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Mobility
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Breathability
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Fit
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Versatility
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Value
