What Run Oregon is Wearing: Coolcore

It’s summer, it’s hot. We run, we sweat. We need to wear clothes that keep us as cool as possible, and hopefully ones that don’t include lots of toxic chemicals. Enter Coolcore, the maker of cooling fabrics that are chemical free and claim to be changing “the essence of cooling fabric technology right down to its very core.”

It’s tough being an Oregonian. We are used to the rain and the gray skies here, so when it gets hot, we all feel it. As a runner, those first few hot days can be brutal, so it’s always a score to find clothes that will keep us from overheating. Enter Coolcore, a company that started because a theme park needed help with finding a towel with cooling fabrics to help out their customers in the hot sun. Coolcore made it their misson to develop a fabric that would not only wick away sweat but that eliminated the need for spray-on chemicals to cool people down. What they succeeded in doing was developing a fabric that was better for the environment and lasted longer than any other cooling fabrics because there were no chemicals to wash out.

Coolcore still sells cooling towels, but they’ve come a long way since crushing their initial goal. They also make hats, headbands, arm sleeves, ice wraps, and men’s and women’s apparel. I was fortunate enough to try out the women’s capris, 7/8 tights, and a tank top.

Often my biggest issue with athletic pants is that they begin to feel like they are slipping down after I start moving around in them, especially if they are tight around the ankle or calf. I have a small waist, a long torso, and large calves, so high-waisted pants are my preference. The Coolcore capris have a drawstring inside, which I was pleasantly surprised to find. There were also side pockets and a zippered back pocket, which is convenient for a small key. The yoga 7/8 pants have an open seam pocket which you can easily tuck a small item into. The pants did not have the drawstring, but they felt secure. Both the pants and capris fit a bit snugly, but I’m sure that is intentional, since they are supposed to have a bit of compression built in. They still felt comfortable and breathable. The material is lightweight, but still passes the “bend down test.” For those unfamiliar with this, the test is simple. You bend down with your butt in front of a mirror and check to see if you can see your underwear through the fabric. Nothing to see with the Coolcore pants, and thankfully no unflattering ripples or bumps either, whew!! I had the opportunity to wear both the capris and pants in some hot weather this summer, and the mesh ventilation kept them from feeling too warm on my body. Additionally, they performed very well. I never felt like my pants were falling down. Big score and two thumbs up!

I wore the tank top for the first time on an 11 mile run in the heat, and it was in the color black, which usually equals roasting under the sun. Not the case with this shirt. The tank tops, like the pants, are moisture and sweat activated with strategically placed mesh inserts for ventilation, and I felt cool for the entire run. The material is also very lightweight, stretchy, and comfortable. Some tank tops are a bit too small in the armpit area and chafing can be an issue while you are sweating, but this shirt was very roomy, even in a size small, which is what I was wearing. I also loved the cut of the women’s style, where it was slightly longer in the back and a bit form-fitting but still plenty loose. It is very flattering and now one of my favorite summer athletic tops.

I would definitely recommend this brand to anyone who is planning to break into a sweat under the sun. The last thing you need to worry about when you are getting a good workout is your clothes. With  CoolCore, you aren’t thinking about what you are wearing at all, and that is a compliment to the brand. It helps that they look great too.

Company: Coolcore

Product/Items and Price:

Product Specs (From website):

  • Mechanically-engineered, chemical-free cooling technology never washes out
  • Hypoallergenic fabric
  • Main body fabric provides UPF 30+ sun protection (varies depending on fabric/color)
  • Up to 30% reduction in body surface temperature
  • Cooling via wicking, moisture circulation, and regulated evaporation
  • Reflective logo and details for visibility
  • Mesh inserts for added ventilation and style


Thank you to Coolcore for providing us with samples. Please read our transparency page for info on how we do our reviews.

About Nikki Mueller (603 Articles)
I'm the owner of Healthy Girl Fitness and I'm a personal trainer, certified AFAA group exercise instructor, and an RRCA certified running coach in SW Portland. I am also the mother of two young boys and am on the board at my youngest son's school. I led a relatively inactive life throughout my 20's until I discovered the world of fitness and running. I ran my first marathon in 2006 and haven't looked back since.
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