
Women’s activewear apparel brand Halfdays has a new collection of tops, sports bras, leggings, and shorts made with the best cooling fabric by brrr° so you can workout harder, not hotter.
The Halfdays line made with brrr° includes the Hattie bike short, which has a gusset for mobility and freedom of movement plus a pocket to hold keys or a card.
The fabric is lightweight, buttery soft, and feels cool against your skin while also providing superior moisture management to keep you dry and comfortable. The shorts are available in Navy and also cheerful limited colors including Forget Me Not (light blue) and Verdant (grassy green).
The shorts are incredible and my new go to- will absolutely be getting these in more colors. I have worn them for pilates and sweatier activities like hikes. —GG, verified buyer

For medium compression leggings, Halfdays has the Kara 7/8 Legging to wick away moisture and cool you down so you can spend more time staying active.
Formerly called the Camille 7/8 Legging, these pants provide an instant and cooling sensation with the perfect amount of stretch and compression for total comfort.
A great choice for walking, pilates, and yoga, the leggings feature a side pocket to hold your phone and keys while you’re working out. The Kara 7/8 Legging is available in Black and Navy, plus limited edition colors such as Martini (dusty olive green), Brunette (maroon), Sapphire (blue), and Shadow (dusty blue).
They’re soft and comfortable, and have flattering compression. I took them out on a 6.5 mile hike on a hot day and they were comfortable throughout. —Sierra, verified buyer
Sports Bra & Top
The Kara sports bra is a great choice for medium impact support and all the benefits of brrr° cooling and wicking to support your body’s natural thermoregulation for active peak performance.

With a high neckline and circular cut-out on the back, the Kara bra has soft foam removable cups and interior brushed soft elastic so it feels great against your skin. It’s available in Amethyst (pink) or Alpine (dark green).
I’m obsessed with this bra!!! It’s great for indoor workouts but also love to hike/walk in it. It feels secure and I love the high-neck in the front, but the open back is super cute. —Lauren, verified buyer
Halfdays also offers the Gwen Longline Top, which has dual shoulder straps and is double-lined under the bust for better support whether you’re pushing your body to its limits or doing a walk-and-talk with friends.
They’re available in Navy as well as limited colors such as Peony (pink), Sunset (orange), Forget Me Not (light blue), Verdant (grassy green).
The Halfdays brrr° collection is made with brrr° Recycled Polyester and Spandex for stretch and comfort, and they offer superior UPF 50+ sun protection.
The Best Cooling Fabric
brrr° combines the powers of natural cooling minerals, active wicking, and rapid drying to instantly and continuously draw heat and moisture away from the skin.
And you can trust it — every brrr° fabric is independently tested by third-party labs and proven to keep you cooler.
Because brrr°’s patented cooling technology is embedded right in the structure of the yarn, it won’t fade or wash out over time so it lasts the lifetime of the garment.
We love partnering with other innovators and disruptors, and Halfdays is doing exactly that for women’s active apparel.
After competing in the 2018 Winter Olympics in men’s ski wear, Kiley McKinnon had a vision for co-founding Halfdays to provide better cuts and approachable styles for women that are tailored to their body shape.

Halfdays invited women to embrace the outdoors on their own terms while wearing functional yet stylish apparel made with performance fabric that helps them stay cool, comfortable, and confident.
Building on their success with skiwear since launching the brand in 2020, Halfdays has since expanded into year-round mountain and activewear apparel with the best of style and performance.
Learn more about brrr° products here.


