About These Pants
Designed for Movement
Sustainable by Design
Frequently Asked Questions
You've got questions, we've got answers
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Discover the Ultra-Flex Tri-Color Pants - 100% made in Los Angeles and built for performance and style. Featuring cuffed hems, deep functional pockets, and eco-conscious stretch fabric, they’re designed to support yoga, pilates, training, and everyday movement.
The Ultra-Flex Tri-Color Pants embody form, function, and flow. With bold tri-color styling and performance-driven construction, they’re ideal for yoga, pilates, hiking, or lounging. 2×1 RIB cuffing at the ankles keeps the pants securely in place during inversions and handstands, while continuous rib piping along the sides and inner leg delivers stability and flexibility. Sewn-on pockets - 6.5″ deep offer reliable storage without shifting, making these pants as practical as they are stylish.
Made with breathable, lightweight, eco-conscious fabric, these pants provide freedom of movement across any activity. Whether you’re stretching through deep poses, powering through a workout, or simply running errands, the streamlined fit ensures lasting comfort. Their versatility makes them a true multi-purpose piece of yoga wear.
Proudly crafted in Los Angeles, the Ultra-Flex Tri-Color Pants reflect 4-rth’s commitment to mindful, eco-friendly activewear. Every detail from the colorfast fabrics to the reinforced stitching was chosen for durability, comfort, and sustainability. With their vibrant tri-color combinations, these pants stand out while still aligning with an environmentally responsible lifestyle.
You've got questions, we've got answers
Yes, they’re designed with stretch and cuffed hems that stay in place through all poses.
Not at all. The 2×1 RIB cuffing keeps the pants in place during inversions while maintaining full flexibility.
Yes, the sewn-on pockets are 6.5″ deep and secure, perfect for carrying essentials without floating.
They’re made with eco-conscious fabrics and produced responsibly in Los Angeles.
No, they’re crafted with durable, colorfast materials designed for long-lasting wear.
Yes, the lightweight, breathable fabric helps regulate temperature even in heated sessions.
I have three pairs of these pants and love them. I can move very freely. I also love the fabric being Polyester free and the length is very helpful for providing traction during arm balances.
These are my favorite hot yoga shorts. Super comfortable and allow for great movement.
Finally located my go-to lounge pants. Quality construction, slim profile, characterful touches like the cuff design, ideal fabric weight, stretchy waist, and the major one: the *IDEAL* length to attractively accommodate my 5' 6" frame sans excess fabric... because a dude wants to show some leg, y'know? Love these things. I own them in two colors - cinnabar red & the lovely light cloudy grey, which I prefer to the more common dark charcoal greys. To nitpick, the zippers could be higher quality and not boring black, such as a more substantial YKK with perhaps an aged nickel patina. That is the single attribute that I could envision to be upgraded in a future iteration. Still, I am so pleased with these as everyday lounge/walking pants than I cannot bother reducing a star.
I just ordered 3 more of these after my first 3 I ordered finally had to be discarded after about 4 years of constant use. Best shorts ever and only shorts I buy and wear!
Amazingly comfortable and fantastic customer service
These yoga and workout pants are perfect for me. Comfortable, conforming,and stylish and functional. Nice material and construction. These pants have a lot going for them. The make me happy when I have them on.
I love these sweat pants. They are super comfortable and very well made.
I mainly wear a small when wearing 4-rth clothing. However, I wanted a more loose and casual fit so I got these in a medium for house lounging…. I love them, they are super comfortable and very well made.
Excellent for hot yoga. Very pleased with the fit and performance.
I just received two pairs of the ultra flex and love them! The fit is great and I really love your company!
These cuffed yoga pants are great! I liked them so much I ordered two more.. for reference I am 5’9/160 lbs… the small works great for my frame.
These feel so good to the skin. The fit is correct and they look great. Might be my favorite pair of sweats. I bought 7 more pairs and cant wait to receive them!
Totally beautiful track pants. I recommend u pick one up. Fits perfectly and tge color of black with the red strip is sensational. . Fits perfectly.
These are comfortable and cool all rolled into one. Great for kicking it back at home or any casual event. Yoga. Running. There is no limit.
Absolutely love the fit and feel.
These are hands down the most comfortable and attractive shorts I’ve ever owned. I’ve never gotten as many compliments about an article of clothing before (all from women, fwiw). I have these in three different colors but these seem to get the most positive feedback. I’ve worn them to the beach (even swam in them), to the grocery store, to Pilates. Had to get up my nerve to go all white in public (with no underwear) but it was totally rewarding. They’re the best.
I have three pairs of these pants and love them. I can move very freely. I also love the fabric being Polyester free and the length is very helpful for providing traction during arm balances.
These are my favorite hot yoga shorts. Super comfortable and allow for great movement.