About Oiselle
Oiselle is a Seattle running apparel company founded in 2007. It makes sports bras, tops, shorts, tights, jackets, hats and gloves for women who run, including a separate C-DD bra range. Customers buy on the company's website. U.S. orders of $150 or more ship free, and buyers have 30 days to return or exchange.
Margo Cramer is the company's chief executive officer and owner. She invested in Oiselle in 2025, and the company is women-owned and women-led again. The site also lists an elite team, a Volée membership and training plans.
Funding Rounds (SEC Form D)
| First sale | Filed with SEC | Amount sold | Investors | Avg. check | Terms | Filing |
|---|---|---|---|---|---|---|
| Oct 16, 2026 | Oct 28, 2026 | $500,000of $2.0M target | 1 | $500K | EquityRule 506(b) | Form D ↗ |
| Oct 29, 2025 | Nov 18, 2025 | $300,000of $1.3M target | 1 | $300K | EquityRule 506(b) | Form D ↗ |
| Total, two offerings | $800,000 | |||||
First sale is the date the first investor in the offering committed to invest. Companies must file Form D within 15 days of that date, so filing dates run later.
Rounds announced by Oiselle
What the company said publicly about its funding. Announced amounts can differ from Form D figures: an announcement can combine several closings, and some money is raised without a Form D.
| Announced | Round | Amount | Investors | Source |
|---|---|---|---|---|
| Apr 3, 2025 | Ownership investment | Undisclosed | Margo Cramer (lead) | Our Story (Oiselle) ↗ Women's Running Brand Oiselle Announces New Ownership ↗ |
Why Investors Backed Oiselle
Oiselle designs and sells running apparel for women. The Seattle company was founded in 2007 and began with a pair of shorts. Margo Cramer, a former college runner, invested in 2025 and is now its owner and chief executive officer.
The problem it targets
Oiselle's account of its start is that running clothes were built for men and then resized for women. Its first products were designed around women's bodies instead. The company names three design problems it works on: storage options, corset-like bras and shorts that chafe the thighs.
What the product does
Shoppers can browse by benefit: cold weather, wool, running after dark, wind and rain, and cooling fabrics. Featured styles include the Flyout, Pockito and Pocket Jogger lines. The site also has a size chart, a fabrics guide, a design feedback page and a Sports Bra University guide.
Progress so far
Oiselle signed runner Lauren Fleshman on January 1, 2013. In a blog post dated February 24, 2023, it announced a partnership with Janji. The blog points to the Oianji Hydration Bra as a result of that partnership.
Who backs it
Cramer's 2025 investment returned the company to women-owned and women-led status. In her note on the story page, she writes that she carried a pair of Oiselle shorts to college. She adds that she graduated in 2012 with eight All-American honors and four NCAA titles. According to trade outlet SGB, she invested on her own, not alongside Janji or another investor partner.
We wrote this summary from public statements by Oiselle and its investors. It is not investment advice.
Oiselle in the News
Leadership Team
Executive officers and directors listed on Oiselle's Form D filed Oct 28, 2026.
Earlier filings also listed Arielle Knutson (executive officer, last listed Nov 2025).
Sources
- SECOiselle, LLC filing history
- CompanyOiselle Blog