I'm a Marathon Runner, and This Is My Favorite Running Gear for Warm Weather
What do you mean I can't run with an AC unit strapped to my back?
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Let's cut to the chase: I dread running in the heat. You could say I'm a big baby about it, in fact. But as long as all my favorite marathons are in the fall (Philly, NYC, Chicago), I'll be sticking to a summer training schedule.
As the temperature rises and summer approaches, runners everywhere are shedding layers and adapting their gear for the heat. After six marathons, I know what it looks like to invest in proper running gear. Here's a rundown of my favorite gear that keeps me comfortable when the sun is killing all my strength and motivation to lace up and go.
Lightweight, technical running shirts
When it comes to warm-weather running tops, technical fabrics are non-negotiable. My go-to shirts feature moisture-wicking polyester blends that pull sweat away from my skin and dry quickly. (This blend is what Nike coined as "Dri-FIT.")
Look for shirts labeled with terms like "heat gear" or "cool tech." These typically incorporate mesh panels in high-heat areas like the back and underarms. At the same time, these technical running shirts can break the bank. Search for "moisture wicking" in the clearance section of your favorite brand of athletic clothes, and you should be able to snag some affordable options.
I prefer slightly looser fits in the summer that allow for better airflow, though not so baggy that the fabric clings when wet. For particularly hot days, tank tops provide maximum ventilation while still offering protection from the sun's rays on your shoulders and upper back.
And for anyone who wears sports bras, I recommend finding a bra you like and buying five of 'em (or however many sports bras you go through before laundry day). As it gets warmer, I've been a big fan of wearing a bra that doesn't require a shirt on top, although I know that's not an option for everyone. This sports bra from Ciele keeps everything in place for me, and has been my go-to this season so far.
Breathable running shorts
In warm weather, the right shorts make all the difference. I've found that 5-inch inseam shorts hit the sweet spot for comfort and mobility, but definitely experiment to find the right length for you. If you're ready to splurge, the best summer running shorts feature:
Built-in liners that provide support without restricting movement
Quick-drying, lightweight fabrics that won't chafe when wet
Small interior pockets for keys and running gels
Reflective elements for early morning or evening runs
I especially appreciate shorts with split designs that increase range of motion and ventilation when you're really working up a sweat.
Lightweight, responsive shoes
I've been getting into rotating my shoes to help them last longer—stay tuned for my results. For now, what you need to know is that finding the perfect running shoes is about so much more than style or brand preference—the right shoes are essential for performance, comfort, and injury prevention.
In particular, summer is the perfect time to rotate in your lightest, most breathable running shoes. For my lightweight pair this season, I've been a fan of the Saucony Endorphin series. For more cushioning and stability, I work in my Nucleo 2s. I know that some runners even prefer shoes with drain holes, for when you encounter puddles or water crossings, though these aren't necessary for most road runners.
I'm also dipping my toe (pun intended) into the world of barefoot running these days. Something truly minimalist, like Xero Shoes, usually cost less than traditional running shoes. This tracks, since they are significantly less material than your standard shoe. Seriously. Be prepared to train as a borderline barefoot runner.
An extra shopping hack: The Saucony Endorphin Speed 5 drops June 1—making that week the perfect time to get a great deal on the Endorphin Speed 4.
Hydration and fueling
I've previously dedicated full posts to fueling during runs, and I could fill a book about my opinions on running gels alone. (A rambling and entirely subjective book, but still, a book.)
If you’re unfamiliar with gels, picture a syrupy Go-Gurt-like packet of quick energy. Most advertise a prime combination of carbs, caffeine, and amino acids. My preference in gels is aptly named Gu. Other runners swear by Gatorade chews, Snickers bars, or even some loose dates in a Ziploc bag.
Proper hydration becomes even more critical in warm weather. Depending on the length of your run and water availability, I alternate between:
A lightweight handheld water bottle with a hand strap (perfect for runs under an hour)
A minimalist hydration vest for longer efforts
My FlipBelt with multiple small bottles for more balanced weight distribution
Look for options with additional storage for essentials like nutrition, a phone, and keys. The best hydration gear feels secure without bouncing or chafing, even when you're picking up the pace.
And while electrolyte mixes are over-marketed, they still do come in handy when it's time to replace all those lost fluids. I plan on testing some this summer, but for now, I can recommend brands like LiquidI.V. and TailWind.
Moisture-wicking socks
Never underestimate the importance of good socks! Cotton is the enemy when temperatures soar, as it holds moisture and leads to blisters. Instead, I invest in technical running socks with synthetic blends or merino wool (which, surprisingly, performs excellently even in heat). Some also feature mesh panels on the top that increase airflow around your toes.
If you want to spring for features like odor control and moisture management, be my guest—but I haven't found a world of difference for that higher price. This six-pack from Nike for $30 is par for the course, and I wouldn't spend much more than that.
A reliable running hat
Sun protection is crucial during summer runs, and a good running hat serves multiple purposes: It shields your face and eyes from harsh sunlight, keeps sweat from dripping into your eyes, and prevents sunburn on your scalp.
My guess is you probably own a baseball cap that gets the job done. I personally wouldn't spend money on a technical running hat. But if you need something special, look for lightweight hats with moisture-wicking sweatbands and mesh panels for ventilation. Dark underbills reduce glare without making your head hotter.
Body glide or anti-chafing balm
Anti-chafing products are essential. I cannot ethically write a running gear round-up with including anti-chafing tips. When sweat and repetitive movement combine, painful chafing can quickly ruin a run. I apply anti-chafing balm preemptively to common trouble spots: inner thighs, underarms, sports bra lines, and anywhere else friction occurs.
The best products create a long-lasting invisible barrier that holds up to sweat and won't stain your clothing. This Body Glide anti-chafing stick works like a charm for just $8.99. This small addition to your running kit can make the difference between a miserable, cut-short run and a comfortable long-distance effort.
Final thoughts
Training in the heat is no small feat. The right warm-weather running gear allows you to maintain your training through the hottest months safely and comfortably. While quality technical apparel isn't cheap, as the years go by I'm learning to accept what a worthwhile investment they are for dedicated runners.
Remember that the best gear is the gear that works for your specific needs. What works for one runner might not work for another based on body type, running style, and personal preference. Don't be afraid to experiment until you find your perfect warm-weather running kit.
