olympian-founded, designed in colorado.
After competing in men’s ski wear at the 2018 Winter Olympics, co-founder Kiley McKinnon had enough of the “unisex” fits truly meant for men and the unapproachability of the outdoor industry. Frustrated by the lack of gear fit for women’s bodies, coupled with "hardcore" outdoor culture, Kiley came together with co-founders Ariana and Karelle to provide women with a better option for ski apparel, and to disrupt the male-dominated outdoor industry.
Since launching the brand in 2020, we’ve expanded into outdoor apparel for the mountain year-round, but ski is where everything started for us. It’s why we design technical products that can compete at the highest level of the sport, but can be worn by every level of skier: because everyone (!) deserves to own the mountain.
own the mountain.
2019
Kiley and Ariana first meet and decide to start Halfdays together.
January 2020
Fitting our first products - peep the first iteration of our Aston Jacket!
November 2020
Official company launch day and our first shipments of product went out!
January 2021
Biggest Community ski meet up to date, with over 100 attendees in Breckenridge.
November 2022
Launched in Nordstrom. *Surreal!!!!*
November 2022
Co-Founders Ariana and Kiley named Forbes 30 under 30.
April 2023
Launched our first spring/summer collection.
August 2023
Our first on-mountain campaign shoot in New Zealand.
December 2023
Hosted our first NYC Winter pop-up in SoHo on Crosby Street.
February 2024
Partnered with the Women of Winter non-profit organization in Big Sky.
November 2024
Launched in REI. A big one for us as a Colorado-based brand!
December 2024
Opened our first flagship store, on Walnut Street in Denver, CO.
January 2025
ILIA Beauty Collaboration - designed our ski kit in ILIA’s iconic Lip shade.
October 2025
Secured $10 Million in Series A Funding.
November 2025
HOKA collaboration - our slope-savvy spin on the HOKA Kaha 2 Frost Moc.
October 2026
Four years in the making. Halfdays becomes the first women-only ski brand to collaborate with GORE-TEX®, bringing industry-leading performance technology to our women-first approach to fit and design.
Bye Bye,
Boys Club.