The Trimline 5" Biker Short holds you through training in exceptionally soft fabric, its high-rise sculpting waistband drawing a clean, unrestricted line.
Why you'll love it:
Fabric
73% Ciclo Nylon, 27% Spandex
Care
Machine wash cold, tumble dry low
Built on CiCLO® biodegradable fiber.
CiCLO® is built into our recycled synthetics to do two things: shed fewer microplastics in wear and wash, and biodegrade rather than linger. Independent testing shows CiCLO treated fibers biodegrade in under four years — so they don’t add to long-term microplastic pollution.
Certified by ECO PASSPORT by OEKO-TEX®.
| Sizing | Numeric Size | Waist (inches) |
|---|---|---|
| X-Small | 0–2 | 24–26 |
| Small | 4–6 | 26–28 |
| Medium | 8–10 | 28½–30½ |
| Large | 12–14 | 31–33 |
| X-Large | 16–18 | 33½–36 |
What's In Your Legging
Feel
Buttery soft, moderate compression
Wear
Gym, running, yoga, HIIT, cycling
Fabric
Advanced performance fiber
Technology
CiCLO® biodegradable
Tested
Third party verified
Built to move with you — and tested to prove it. CiCLO® advanced fibers delivers the compression and recovery you expect, independently tested free from PFAS | BPA and screened for 100+ chemicals, many of which most activewear brands don't test for. Performance you can feel. Safety you can verify.
Independently tested by a third party lab. Every finished product. Results available upon request. Learn more about our fabric →
Overall rating: 4.982143 / 5 from 56 reviews.
The Trimline 5" Biker Short offers a soft, supportive fabric with a high-rise fit that moves naturally with your body. Customers appreciate its comfort and flattering silhouette, making it ideal for any training.
Review topics: ["feel","fit","fabric","shorts","material","length","quality","waistband","size","clothing","chemicals","proof","pair","brand","sweat","wear","compression","leggings"].
"I’m enjoying these more than I expected. The material is thin and not restrictive, but even in the blue doesn’t show sweat and is flattering. Quite comfortable and a good inseam length on my 5’3” frame. X-small might be a little large compared to other brands but fit me perfectly. Mildly concerned the shorts will stretch out over time but so far so good after about 5 washes."
"Finally, a non-toxic short…the one I’ve been searching for! I originally purchased these to be worn under dresses, but have also used for Pilates &/or weights. The length is perfect for under my shorter dresses. Wish they were a bit longer when working out, but they’re sufficient since I work out at home. At 60 yrs old, I’m not sure I’d feel comfortable wearing in public…but that might just be me. Nice substantial fabric and good fit."
"I love these shorts! I wear them to workout or just to run errands/around the house. They are flattering and perfect compression - they aren’t too tight where they squeeze you, but they still feel supportive & don’t stretch out after washing & wearing them. Best part is knowing they are non toxic and my skin isn’t absorbing harmful chemicals as I wear them all day!! Buy them!"
"Love these shorts; they have quietly replaced my similar shorts and I have barely noticed. It’s great that now I’m not absorbing anything terrible for my health"
"These are my absolute favorite shorts! I ended up getting a small and XS. While both fit, the Small is more comfy for everyday wear (and doesn't pinch in at the thighs). I'm 5'1 and 100lbs. The size small is so comfortable! It helps keep my tummy area looking great, and it's perfect for summer days out. I really wish there were more color options out for these. I'd love to see pink!"
"The fabric feels high quality. Usually wearing plastic stuff bothers me but not in this case. It feels breathable, comfortable and soft, but also strong. It’s also great knowing it’s not toxic. I will just say this here, I'm always on the hunt for low waisted workout clothes. Nobody does them anymore. They are just so much more comfortable to me with the shape of my hips. On these the waist is fine, not crazy high. I'm used to it always being a little higher than I want."
"Great quality and fit true to size. Not too tight/not pinching in the wrong places."
"Excellent quality and materials you can feel good about wearing."
"Love these shorts! Good length, they don’t ride up, the waist band is stretchy and comfortable and the fit is great. Love them!"
"I have been struggling to find a nontoxic pair of biker shorts that can withstand the summer heat and humidity for outdoor walks. All the other nontoxic brands I had tried had 7” inseams that would just about hit my knee on my short 25” inseam legs, plus they were not squat proof at all. Thankfully, I found Definite Articles and the 5” short hits mid thigh for me and looks great. It doesn’t roll up on walks (rolls up a little with strength training but as a pear shape with muscular thighs all shorts do on me) and is squat proof! I have a 30” waist and 43” hips and the size large is pretty much a perfect fit and very comfortable. I will definitely be investing in all the colors."
