Halfdays
Denver, US · Founded 2019 · 10 known investors
Halfdays is an Olympian-founded women's outdoor and snow apparel brand designed in Colorado and sold direct online.
Also known as Halfdays
Founders & leadership
Halfdays was founded in 2019 by Kiley McKinnon, Ariana Ferwerda, and Clarke McKinnon.
Board
Investors · 10
Also in the syndicate · 3
Reported raises · per SEC filings
Form D private placements$14.3M disclosed across 5 of 6 rounds · 2020–2026
▶$1.5MraisedAug 2026 · 5 investors · OtherRule 506(b)
- Ariana FerwerdaExecutive Officer, Director, Promoter
- Kiley McKinnonExecutive Officer, Director, Promoter
- Adrian KowalewskiDirector
- Offering amount
- $2.5M
- Amount sold
- $1.5M
- First sale
- Aug 2026
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$10.4MraisedNov 2025 · 18 investors · OtherRule 506(b)
- Adrian KowalewskiDirector
- Kiley McKinnonExecutive Officer, Director, Promoter
- Ariana FerwerdaExecutive Officer, Director, Promoter
- Offering amount
- $11M
- Amount sold
- $10.4M
- First sale
- Jul 2024
- Incorporated
- Corporation, Delaware
- Federal exemptions
- 06b
▶$1.2MraisedNov 2022 · 11 investors · OtherRule 506(b)
- Clarke McKinnonExecutive Officer, Director
- Karelle GoldaExecutive Officer, Director
- Kiley McKinnonExecutive Officer, Director, Promoter
- Ariana FerwerdaExecutive Officer, Director, Promoter
- Offering amount
- $4M
- Amount sold
- $1.2M
- First sale
- Jul 2022
- Incorporated
- Corporation, Delaware, 2020
- Federal exemptions
- 06b
▶$1.1MraisedSep 2021 · 13 investors · OtherRule 506(b)
- Karelle GoldaExecutive Officer, Director
- Clarke McKinnonExecutive Officer, Director
- Kiley McKinnonExecutive Officer, Director, Promoter
- Ariana E FerwerdaExecutive Officer, Director, Promoter
- Offering amount
- $1.5M
- Amount sold
- $1.1M
- Proceeds to insiders
- $240K
- First sale
- Aug 2021
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
▶$40KraisedSep 2020 · 3 investors · OtherRule 506(b)
- Ariana FerwerdaExecutive Officer, Director, Promoter
- Karelle GoldaDirector
- Kiley McKinnonExecutive Officer, Director, Promoter
- Clarke McKinnonExecutive Officer, Director
- Offering amount
- $850K
- Amount sold
- $40K
- Proceeds to insiders
- $120K
- First sale
- Aug 2020
- Incorporated
- Corporation, Delaware, 2019
- Federal exemptions
- 06b
Source: SEC EDGAR Form D. Amounts as filed; amended filings shown once at their latest values.
Company profile
researched Aug 2026Halfdays is a women's outdoor apparel brand that sells activewear, snow gear and accessories through its own online store at halfdays.com. Its assortment is organized into clothing (tops, pants, jackets, fleece, vests, skorts, leggings, shorts), snow-specific outerwear and base layers, and accessories including socks, hats, headbands, scrunchies and beanies. Products are named individually and priced roughly between $55 for a racerback bra and $225 for a packable puffer jacket, with items such as the Chapelle Fleece Jacket ($175), Pieper Fleece ($195), Bastille Trail Pant ($135) and GwenUV™ Jacket ($155). The brand markets proprietary fabric branding, including MeltEffect™ and GwenUV™, and groups its range by use case across trail, active and snow.
The company positions itself against "hard-core" outdoor culture with the stated mission of empowering more women to "own the mountain," citing technical fabrics and inclusive sizing. Size ranges run from XXS to XL on most styles, extending to 1X and 2X on some fleece and vest products. The site describes the brand as Olympian-founded and designed in Colorado. Alongside full-price collections, Halfdays runs sale and resale channels, including "Last Run," "Pre-Loved" and "Second Lift" sections, and maintains community-facing elements such as events, a store locator and a public Slack channel [0].
Business model
Halfdays sells branded women's apparel and accessories directly to consumers through its own e-commerce site, offering free shipping on US orders over $95 with restrictions. It supplements full-price sales with discounted "Last Run" merchandise and pre-owned/resale categories ("Pre-Loved," "Second Lift"), and a store locator indicates availability through physical retail points as well [0].
Revenue comes from product sales of apparel, snow outerwear, base layers and accessories at price points from about $55 to $225 per item, sold online in USD, including to international shoppers via a country selector [0].
Traction
The site shows an active seasonal assortment with multiple sold-out sizes and colorways across MeltEffect™ styles, a designated best-sellers set, and secondary resale categories for pre-owned product [0].
Latest developments
The company introduced its Fall 2026 "Get Out of Town" collection, described as lightweight insulation, fleece, active layers and trail-ready bottoms, and highlighted a new fabric, MeltEffect™, across several styles [0].
▸Full profile — market position, technology, go-to-market, geography
Market position
Halfdays presents itself as a women-focused alternative within outdoor and snow apparel, competing on style, technical fabrics and size inclusivity rather than expedition-grade performance positioning [0].
The brand differentiates on a women-specific, inclusive-sizing approach to outdoor apparel, an explicitly non-"boys club" brand voice, and proprietary fabric technologies marketed as MeltEffect™ and GwenUV™, together with its Olympian-founded, Colorado-design story [0].
Technology
The company markets branded fabric platforms, including MeltEffect™ used across the Joan bra, tank, bike short and skort styles, and GwenUV™ used in pants and jackets, alongside claims of lightweight insulation, fleece and wind resistance in its Fall 2026 line [0].
Go-to-market
Direct-to-consumer online sales are the primary channel, supported by community-building activities such as brand events and an open Slack channel, seasonal collection drops ("LinkDrop," "Fall 2026: Get Out of Town"), customer testimonials on site, and a store locator for retail availability [0].
Women who ski, snowboard, hike and train outdoors, including customers seeking inclusive sizing (XXS through 2X on some styles) and those who prefer a less performance-intense framing of outdoor activity [0].
Geography
Design operations are in Colorado, United States. The webstore serves US customers with a domestic free-shipping threshold and offers a market selector covering a wide range of international countries, mostly priced in USD with some local currencies such as AUD for Australia [0].
Compiled by commissioned research from 7 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 14
launches, deals, and filingsHalfdays introduced its Fall 2026 collection featuring lightweight insulation, fleece, active layers and trail-ready bottoms, including the Pieper Fleece, Nellie Packable Puffer Jacket, Irene Pant and Julie Quarter Zip Top.
The company launched a new fabric branded MeltEffect™, used in Joan-line bras, tanks, bike shorts and skorts.
Announced a $10 million Series A led by apparel manufacturer Kellwood Company, with participation from Dick's Sporting Goods Ventures and model Taylor Hill. Proceeds earmarked for expanding winter/ski, trail, active and everyday performance apparel, adding wholesale partners including Revolve and Shopbop, and investing in brick-and-mortar stores.
$10M source ↗
Collaborated with ILIA Beauty on a limited-edition ski suit designed in an ILIA lip shade, tied to ILIA's Barrier Build Skin Protectant Cream.
Opened its first flagship store on Walnut Street in Denver, Colorado.
Partnered with the Women of Winter non-profit organization in Big Sky.
Hosted its first NYC winter pop-up in SoHo on Crosby Street.
Launched its first spring/summer collection, extending beyond skiwear.
Co-founders Ariana Ferwerda and Kiley McKinnon were named to the Forbes 30 Under 30 list.
Hosted its largest community ski meet-up to that date, with more than 100 attendees in Breckenridge.
Halfdays launched officially in November 2020 and shipped its first products.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
▸Research sources · 7
primary sources listed
- Halfdayshalfdays.com · web
- Women’s Ski Brand Halfdays Raises $10 Million Series A | BoFbusinessoffashion.com · web
7 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does Halfdays do?
- Halfdays is an Olympian-founded women's outdoor and snow apparel brand designed in Colorado and sold direct online.
- Who founded Halfdays?
- Halfdays was founded by Kiley McKinnon, Ariana Ferwerda, Clarke McKinnon in 2019.
- Who are Halfdays's investors?
- Halfdays's investors include Break Trail Ventures, Everywhere Ventures, Forward Venture Capital, Greenline Community Ventures, Llc, Wayfinder Ventures, Denver Ventures, The Fund.
- How much funding has Halfdays raised?
- Halfdays has disclosed $14.3M raised across 5 of its 6 known rounds.
- Where is Halfdays headquartered?
- Halfdays is headquartered in Denver, US.