Women's Bitterroot Bloom Short NEW
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The most comfortable women’s mountain bike short in the world—buttery-soft, ultra breathable, with a longer inseam for added coverage and knee pad compatibility.
Bottoms Sizing
alpha size | numeric size | waist | hip | mens size conversion |
XS | 0 | 25.5 | 35 |
mens 26 |
XS | 2 | 26.5 | 36 | mens 27 |
S | 4 | 27.5 | 37 | mens 28 |
S | 6 | 28.5 | 38 | mens 29 |
M | 8 | 29.5 | 39.5 | mens 30-31 |
M | 10 | 30.5 | 42 | mens 31-32 |
L | 12 | 32.0 | 44 | mens 32-33 |
XL |
14 | 33.5 | 46 | mens 33-34 |
XL |
16 | 35 | 48 | mens 34-35 |
XXL |
18 | 36.5 | 50 | mens 35-36 |
XXL | 20 | 38 | 52 | mens 36-38 |
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Technical where it counts, comfortable long after the ride. The Bitterroot Bloom Short is designed for women who want high performance without compromise.
Technical where it counts, comfortable long after the ride. The Bitterroot Bloom Short is designed for women who want high performance without compromise.
Made with buttery-soft, ultra-breathable four-way stretch and a wide, low-bulk waistband that stays put—so you can focus on the trail, not your gear. A 12.5” inseam gives added coverage and plays nice with kneepads, making it ideal for long pedals, loose descents, and unpredictable days. Dialed details include: two front drop-in pockets, two drop-in pockets in back, and a zippered thigh pocket for low-profile storage. Tailored like a vintage trouser, with a playful pop of color in back.
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- Regular fit with mid rise pull on knit waistband
- 12.5” inseam
- Knit waist band with internal drawcord for adjust
- 1 secure zippered thigh pocket
- 2 drop in hand pockets
- 2 drop in rear pockets
- Hanger loop at back
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- 4-way stretch soft polyester fabric with PFC-free DWR finish
- 155 gsm 100% polyester extra soft midweight fabric with breathability and great dry times
- Knit waistband is 4 way stretch single jersey quick drying fabric with wicking finish - 230 gms 79% Recycled Polyester and 21% Spandex
- Bluesign®-approved fabric
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We used a majority of polyester in this short for performance and dry times but with the added bonus of it being easy to recycle. So if your Sun Dog short ever does reach the end of its very long and happy life you can send it back to us for recycling, supporting a circular economy.
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The Bitterroot (lewisia rediviva) is Montana's state wildflower
- Regular fit with mid rise pull on knit waistband
- 12.5” inseam
- Knit waist band with internal drawcord for adjust
- 1 secure zippered thigh pocket
- 2 drop in hand pockets
- 2 drop in rear pockets
- Hanger loop at back

- 4-way stretch soft polyester fabric with PFC-free DWR finish
- 155 gsm 100% polyester extra soft midweight fabric with breathability and great dry times
- Knit waistband is 4 way stretch single jersey quick drying fabric with wicking finish - 230 gms 79% Recycled Polyester and 21% Spandex
- Bluesign®-approved fabric
We used a majority of polyester in this short for performance and dry times but with the added bonus of it being easy to recycle. So if your Sun Dog short ever does reach the end of its very long and happy life you can send it back to us for recycling, supporting a circular economy.
The Bitterroot (lewisia rediviva) is Montana's state wildflower


Full Coverage. Zero Fuss.

Kneepad compatible- for when your curiosity lifts off.

"These shorts fit over kneepads without looking too baggy and oversized, which is a big win. But the real kicker is the soft high-rise waistband. Doesn’t pull or gap when seated on a bike and allows for a lot of movement." - Brita, ★★★★★

"I can't say enough good things about these shorts; the fit and the comfort are there, and I feel good knowing that the people who made them were paid fair wages and worked in good conditions." - NSMB
These are my new favorite shorts, great length for mountain biking through all the chunky PNW trails! They fit like a dream with the stretchy high waisted band and the pocket placement is top tier! These are confidence inspiring and breathable, my personal go-tos on hot days! I personally wouldn’t change anything about these! I can’t wait for more colors! 🤩
A pair of bike shorts that have room for my big 🍑 & thighs without the waist gap- a dream! I tried on everything at my local shop to no avail. Super comfy! Super cute! Loads of compliments. So great I can easily hop off the bike, drop the chamois and roll right into bringing my kids to all their summer activities all day. I was worried about the length, I don’t like feeling restricted pedaling. I’m normally a Ripton gal for mobility, but took a chance on these. So so glad I did.
These shorts fit over kneepads without looking too baggy and oversized, which is a big win. But the real kicker is the soft high-rise waistband. It’s flattering and soooo comfy. Doesn’t pull or gap when seated on a bike and allows for a lot of movement. I haven’t worn any other shorts since getting these and I’m not sure if I can go back now! Love the colorways, too.
Love these! The new longer inseam is great and interacts well with my knee pads (I don't like a gaper gap!). The waistband is heavenly! Period bloat or hotdog bloat -- don't matter, these are staying comfy the whole ride.
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