About These Pants
Built for Cold-Weather Performance
Sustainable Comfort
Frequently Asked Questions
You've got questions, we've got answers
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Stay warm without compromising performance with our Winter Collection Pants - crafted from eco-conscious fleece for unmatched softness, durability, and comfort. Designed for yoga, lounging, or braving colder days, they combine cozy warmth with a sleek, versatile look.
The Winter Collection Pants are built for comfort and performance in cooler weather. Made from mid- and thick-weight fleece, they deliver warmth while allowing easy movement. Their tailored fit, reinforced waistband, and breathable construction make them just as reliable for studio sessions as for casual wear.
Unlike standard sweatpants, these fleece pants balance insulation with flexibility. The eco-friendly fabric retains heat without adding bulk, keeping you comfortable whether you’re flowing through yoga, recovering post-workout, or lounging at home. With versatile styling, they also pair easily with hoodies, tees, or outerwear.
As part of 4-rth’s sustainable activewear, the Winter Collection Pants are made with eco-conscious fleece designed to last season after season. Soft against the skin, yet durable in structure, they embody mindful living with performance-driven comfort.
You've got questions, we've got answers
Yes, the mid- and thick-weight fleece options provide cozy warmth without restricting movement.
Absolutely - their soft fleece construction makes them perfect for rest and recovery.
Yes, made from sustainable materials designed for long-lasting performance.
They’re warmer, softer, and more durable while still offering stretch and mobility.
Yes, the eco-fleece balances insulation with airflow for comfort indoors and outdoors.
Definitely - their clean design makes them versatile beyond yoga or workouts.
Great color yellow. Just a bright tank top a real head turner
Just about the nicest shorts I've ever owned. Shape, cut, styling, all very cute... not to mention how hard it is to find menswear in the Purple color range. Lovely dark shade of plum, quite soft, comfortable, and stretchy. Also, sizing advice is spot on. Very happy with these shorts.
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!
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.
Great color yellow. Just a bright tank top a real head turner
Just about the nicest shorts I've ever owned. Shape, cut, styling, all very cute... not to mention how hard it is to find menswear in the Purple color range. Lovely dark shade of plum, quite soft, comfortable, and stretchy. Also, sizing advice is spot on. Very happy with these shorts.