Woman wearing black Trimline 5" Shorts by Definite Articles.
Woman wearing black Trimline 5" Shorts by Definite Articles.
Woman wearing black Trimline 5" Shorts by Definite Articles. White background.
Woman wearing black Trimline 5" Shorts by Definite Articles. Closeup on pocket.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles. Closeup on pocket.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles. Closeup from behind.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles. Profile view on white background.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles. Closeup on pockets.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles. Side profile.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles.
Woman wearing black Trimline 5" Shorts by Definite Articles.
Woman wearing black Trimline 5" Shorts by Definite Articles.
Woman wearing black Trimline 5" Shorts by Definite Articles. White background.
Woman wearing black Trimline 5" Shorts by Definite Articles. Closeup on pocket.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles. Closeup on pocket.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles. Closeup from behind.
Woman wearing estate blue Trimline 5" Shorts by Definite Articles. Profile view on white background.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles. Closeup on pockets.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles. Side profile.
Woman wearing abalone shell Trimline 5" Shorts by Definite Articles.

Trimline 5" Biker Short

$58.00
New Arrival
Color: Black
Size

Free 2-day shipping on
orders $100+

Tested
PFAS | BPA Free

see the report

Free returns
within 30 days

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:

  • Soft fabric with supportive compression
  • 5" inseam
  • High-rise sculpting waistband
  • Tested free from PFAS | BPA
FABRIC

Fabric

73% Ciclo Nylon, 27% Spandex

Care

Machine wash cold, tumble dry low
SUSTAINABILITY

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®.

Learn more about CiCLO →
View details
The Pürformance Blend – Updated
Definite Articles leggings detail

What's In Your Legging

The Trimline Blend™

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 verified free of BPA, PFAS and 50+ other chemicals most activewear brands don't test for. Performance you can feel. Safety you can verify.

BPA-Free PFAS-Free Biodegradable Fiber

Independently tested by a third party lab. Every finished product. Results available upon request. Learn more about our fabric →

Overall rating: 5.0 / 5 from 35 reviews.

AI Generated Review Summary

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.

Summary topics

  • Fabric Comfort (35%): A significant amount of customers expressed appreciation for the fabric, mentioning its comfort, quality, and perfect fit.
  • Fit Quality (30%): Many customers appreciated the fit of the product, mentioning that it fit nicely and was true to size.

Review topics: ["fit","length","fabric","wear","material","feel","shorts","waistband","clothing","brand","pair","proof","chemicals"].

Review highlights

  • "Nice fabric great fit!" — Katie C.
  • "Love the fabric and the fit" — Robert E.
  • "Love, love everything about the fabric and the style of this pair of leggings." — Marie

Reviews

Great NonToxic Swap for Short Legs

"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."

— Sarah B. (5/5)

Love

"These roll a little when strength training but not enough to be bothersome. I’m fine with that if it means big absorbing harmful chemicals when sweating. Very impressed and so comfy !"

— Johanna r. (5/5)

Like second skin!

"Great fit that doesn’t move for high mileage. Great fabric for someone who sweats a lot."

— Andrea D. (5/5)

Perfect for summer

"Want a perfect pair of workout shorts for summer? These are a must! The fabrics so silky smooth. The waist band is not like the leggings, it’s a bit more flexible and there is an internal pocket- big enough for your phone or keys. They are super comfortable but also has the right about of compression to keep you held in and comfortable!"

— Lauren (5/5)

Love them

"I love these shorts. They fit well, the quality is great, and no forever chemicals! They are true to size, I ordered a medium and they fit perfectly. For reference I’m 5’4”, 146 lbs, 28” waist."

— Jamie P. (5/5)

The best clean clothing I’ve tried thus far!

"I love my tank, gym shorts, and sports bra. They are so soft and comfortable. Unlike a lot of other clean clothing brands, the material is thin and easy to move in."

— Alyssa H. (5/5)

5” biker short

"Excellent product! Perfect fit and feel. Don’t ride up! My favorite! Plan to order more!"

— Dale H. (5/5)

Love these!

"Love these. Fit great. I sized up to a small because it was a little too tight on my endometriosis belly but I think for most people it would fit true to size. Love to have found a non-toxic and still good looking short/legging option!"

— Danielle K. (5/5)

Love!

"I am obsessed! I love the fabric and the waistband! I’m face I wish your leggings had the same waistband. Can you make this in 7/8v?"

— Christine Z. (5/5)

Awesome fit

"Awesome fit. No rolling up at all. Will be replacing all of my biker shorts with these."

— Kiva E. (5/5)

Q&A