Please Select Your Size

XXS / Extra Petite
XXS / Petite
XXS / Regular
XS / Extra Petite
XS / Petite
XS / Regular
XS / Tall
XS / Extra Tall
S / Extra Petite
S / Petite
S / Regular
S / Tall
S / Extra Tall
M / Extra Petite
M / Petite
M / Regular
M / Tall
M / Extra Tall
L / Extra Petite
L / Petite
L / Regular
L / Tall
L / Extra Tall
XL / Extra Petite
XL / Petite
XL / Regular
XL / Tall
XL / Extra Tall
1X / Extra Petite
1X / Petite
1X / Regular
1X / Tall
1X / Extra Tall
2X / Extra Petite
2X / Petite
2X / Regular
2X / Tall
2X / Extra Tall
3X / Extra Petite
3X / Petite
3X / Regular
3X / Tall
3X / Extra Tall

Perfect Plane Pants - Silver Birch

$85.00
Length out of stock?
Color: Silver Birch
 Silver Birch
Charcoal Heather
Light Sage
Black
Light Heather Haze
Soft Beige
Size
Length

Meet your passport to comfort. Designed in our signature ultra-soft Ooey Gooey fabric, this wide-legged sweatpant ensures that coziness is always on your itinerary. Bonus? They’re available in 5 different inseam lengths + 9 sizes to guarantee your fit is flawless.

Fit Stylist Tip: Runs slightly big so we recommend you size down.

Features + Fit

• Drawstring waistband
• Wide, figure flattering leg with side slit hem
• 2 side pockets
• 2 back pockets with zippers
• Sophisticated pintuck seams
• Rollover waistband (wear high-rise, or rollover for low-rise)
• Thick & stretchy fabric

Recommended lengths by height:
• Extra Petite: 4'8"-5'
• Petite: 5’1”-5’3”
• Regular: 5’4"-5'7”
• Tall: 5'8"-5'11'
• Extra Tall: 6' and taller

But for an even more accurate length, we highly recommend you measure your outseam. To get your outseam, measure from your natural waist to floor, at your side, standing tall with straight legs.

If you are size XXS to XL, here are recommended lengths by outseam:

• Extra Petite: 36-37.5" outseam
• Petite: 38-40" outseam
• Regular: 40.5-42" outseam
• Tall: 42.5-45" outseam
• Extra Tall: 45.5-47" outseam

If you are size 1X to 3X, here are recommended lengths by outseam:

• Extra Petite: 40-41.5" outseam
• Petite: 42-43.5" outseam
• Regular: 44-45.5" outseam
• Tall: 46-47.5" outseam
• Extra Tall: 49-50.5" outseam
Model Info
Model: Arlene Height: 5’9" Bust: 44" Bra: 38DD Waist: 39" Hips: 49.5" Torso: 69.5" Arlene is wearing size 1X, Tall
Fabric + Care

Ooey Gooey Cloud Fabric: 95% Cotton, 5% Spandex

Care: Please wash me cold with like colors, then tumble dry me low. If I’m wrinkly, I’m cool with a cool iron. Oh, and I don’t like bleach, but if you must, non-chlorine only...or else! Thank you ♥︎
Shipping + Returns

FREE SHIPPING in the U.S. on any order over $100!

Order amount: $0 - $99.99:
$7.95 U.S. shipping (+$2 for yoga mats or bags)
$13.95 International shipping*

Order amount: $100+:
FREE U.S. shipping
$19.95 International shipping*

*International shipping charges do not include customs and taxes which may apply in your country.

DELIVERY TIME: Please allow 5-8 days for delivery of your order if in the U.S. Please allow 2-5 weeks for international orders to arrive depending on each country's customs inspection and postal delivery practices.

RETURNS: We accept returns (excluding Final Sale items) within 30 days of purchase in unworn, unwashed condition with all tags and adhesive liners intact. U.S. returns will have a $5.95 return fee applied that covers the cost of shipping your return back, as we will be providing the shipping label. Your initial shipping charges will not be refunded, only the purchase price of the items you're returning will be refunded. For International returns, you are responsible for any shipping charges spent to mail your return back.

EXCHANGES: We offer free U.S. exchanges within 30 days of purchase to help you get your perfect fit (excluding Final Sale items). Items must be in unworn, unwashed condition with all tags and adhesive liners intact. Just select the exchange option and pick your new item from the available options in the drop-down menu. We offer exchanges for size, color, and style within that item's product category. At this time we are not able to offer exchanges for international orders as those must be returned.
View details

Customer Reviews

Based on 125 reviews
73%
(91)
18%
(23)
7%
(9)
1%
(1)
1%
(1)
V
Viki L.
Ooey Gooey Matchup!

Got these Perfect Plane Pants to match with my Ooey Gooey Half-Zip Sweater. The material is the same so it is super soft and comfy. It has a weight to it. Since I know that Popflex' loungewear run a bit big, I ordered the XS (when I'm normally a S in other brands) and they fit perfectly around the waist. I got them in Extra Petite (love the multiple inseams!) and the bottom hang right above my feet, being 5'3" short. Due to the slits, I think I should've gone with a Petite instead of Extra. The slit started right at my ankles so I feel a bit exposed. I think I would've preferred these pants without the slits, although they do look great. Love the large side pants and zippered back pockets. I'll be wearing these to my overseas trip next month!

Thank you for leaving a review. We're so glad to hear that you love them and that you got the perfect fit.

A
Ashlyn
Just bought my second pair!

Loved these pants so much at launch last year that I needed a second pair with the launch of these new colors. They are amazing for comfy travel and cozy nights in. I even got complimented at the airport! The length options are so considerate, as I find many bottoms to be too short for me. If you get cold easily, you would LOVE these!

It's great to know that the length options worked out for you and it's always a bonus to get compliments on your travel look!

K
Kim S.
Great fit!

I am 5’2.5” and 130 lbs. I ordered a size S Petite and it fit perfectly!

Lovely to hear that you got your perfect fit!

S
Steph P.
The warmest, coziest WFH pants

I picked up a pair of these with some Christmas money. I was looking for pants that I could wear in my cold office on my work from home days but still be able to venture out to run errands without looking like I was in PJs. These fit the bill perfectly. They are a heavy, comfy fabric but they don't feel heavy or overly hot to wear. I usually wear an XL in popflex bottoms but, following reviews and the fit advice, I sized down to L for these. They fit perfectly. A relaxed fit and the wide legs aren't so wide that you'll trip yourself!

We hope they continue to keep you cozy and confident, no matter where the day takes you.

L
Leeta T.
Awesome pants

I had been waiting for these to come back into stock for a while, and the wait was well worth it! Soft, comfortable, and also practical. I am on the short end of tall (5'9") and curvy (250lbs, 40" waist and 55" hips - I got a 2X). And these are the first sweat pants I have owned that don't ride up. The regular length was just right so they don't touch the ground. Hoping the pink ones come back into stock soon as well 🤗

Thank you for sharing your experience with our pants and for providing your size information - we know that can be helpful for other customers. Happy travels in your comfy and stylish pants. 😊

E
Erica D.
Just buy them already!

What’s not to love? Zip back pockets so my phone doesn’t fall in the toilet when I forget it’s back there (I know I’m not the only one). Or a place to put things you don’t want to fall out of your pockets at the gym. They are super cute. Comfy. Made with nice material. Flattering. Stylish. I’m 5’7”, pear shaped, and usually wear a 12 bottom. The large fits me perfectly. They’re ever so slightly long but that’s how I like my sweatpants. Bought them in two colors and am trying to justify a reason to buy more!

We are so thankful for your review and recommendation. We are so glad you love them!

123