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Free Ground Shipping on all orders. This offer is valid 6/14/18-6/18/18. Please choose the Free Ground Shipping option at checkout. Not valid on the purchase of a gift card. Not valid in combination with any other offer, promotion or privilege. This offer is valid for U.S. shipping addresses only, and is not valid for Influencer/Pro purchases.

Terms & Conditions

Free Ground Shipping on all orders. This offer is valid 6/14/18-6/18/18. Please choose the Free Ground Shipping option at checkout. Not valid on the purchase of a gift card. Not valid in combination with any other offer, promotion or privilege. This offer is valid for U.S. shipping addresses only, and is not valid for Influencer/Pro purchases.
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Red Rock Calculus Pant | Natural Fiber Bottom   view larger image    

Calculus Pant

STYLE: #M41170336X

Availability: In stock

Price From: M41170336X

Regular Price: $99.00

Now only: $59.40

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Red Rock

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PRODUCT DETAILS

From our natural fiber collection, the Calculus Pant features an organic cotton stretch poplin, elastic waistband, cargo pockets, and hem cinch system.

FABRIC DETAILS

  • 97% Organic Cotton / 3% Spandex
  • Organic stretch slub canvas

SIZE GUIDE

CUSTOMER REVIEWS

CUSTOMER Q & A

OUR FABRIC
ORGANIC COTTON

When you buy products featuring organic cotton, you are supporting a process that eliminates the use of harmful pesticides and fertilizers, which not only preserves the biodiversity of the land, but preserves a healthy environment for the cotton farmers.


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THE DETAILS
Calculus Pant

From our natural fiber collection, the Calculus Pant features an organic cotton stretch poplin, elastic waistband, cargo pockets, and hem cinch system.

size ruler Size Guide
PRODUCT DETAILS
  • Ribbed waistband with drawstring
  • Wide scoop front pockets
  • Hem cinch system
  • Loop brush holder on sideseam
  • Single back patch pocket
  • Size M = 32 (81.2cm) Inseam
  • Relaxed fit
  • Imported
FABRIC DETAILS
  • 97% Organic Cotton / 3% Spandex
  • Organic stretch slub canvas
Customer Reviews
Q & A
3.6 / 5.0
11 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
3
5
1
0
2
Fit
Too Small
 
Too Large
Fit
Too Small
 
Too Large
I really wanted to like these pants
I got a small, and they are too big. I am 5’10” and 145lbs, so I slim. But they were like a 36 waist. Wah Wah
March 21, 2018
Purchased
5 months ago
Fit
Too Small
 
Too Large
Excellent yoga and climbing pant!
These are excellent lightweight climbing and yoga pants. False fly, not button or built in belt gives them an excellent feeling of freedom and comfort with a harness. However, the waist isn’t adjustable so that could be an issue. I’m 5,10’and 165 with no belly fat and the waist is perfect.
January 17, 2018
Purchased
5 months ago
Fit
Too Small
 
Too Large
Nice pants
I really like the fit and material. Totally comfortable. I only wish it had a drawstring to help keep it around the waist. That would secure them a bit more than the elastic waistband.
December 10, 2017
Purchased
6 months ago
Fit
Too Small
 
Too Large
Comfy do anything go anywhere pant
I have had these pants for about two weeks now and they have quickly become my go to pant. Similar in style to the Vaha pant however they are a little less pajama’ish. Pockets, there are six of them. Two back pockets are good for wallet phone or whatever. The side pockets have zippers to keep stuff secure but fall deep on to the thigh and I tried a phone in there but it was awkward and annoyed me. Recommend smaller items for there. The front pockets seem off to me. Placement and style I think. They are deep and can handle normal items but I don’t care for the placement or size of the pocket entrance. Lastly, I find that carrying around too much stuff can weigh the pants down and pull them down a bit. Easily fixed by just carrying less stuff. In all I really like these pants. After two weeks I ordered a second pair in Olive. Prana let’s see some more colors for next season. Maybe a mud brown, khaki and a navy. Keep up the good work.
December 5, 2017
Purchased
6 months ago
Really weird fit
These are the most uncomfortable pants I’ve ever worn. They’re too tight at the upper thigh/ lower waist, and the elastic waist band is too big. Such a weird fit. Every time I sit, they slide down so much, by entire butt is exposed when I stand up. Definite not worth the $99 price tag. I wish I could send them back.
November 23, 2017
Fit
Too Small
 
Too Large
I liked the pants. The rise was too low for me. Great customer service on the return and i am a regular customer on other products.
November 2, 2017
Purchased
8 months ago
Fit
Too Small
 
Too Large
Awesome Love the Color
Love the color and feel. Very versatile!!

Con: They tend to walk down my hips and butt.
October 6, 2017
Purchased
8 months ago
Fit
Too Small
 
Too Large
Too baggy
We just got this so review is just for fit--relaxed fit in L is too baggy in the thigh/buttock area; will try in Medium...
October 3, 2017
Purchased
8 months ago
Fit
Too Small
 
Too Large
Highly functional
Very comfortable! Great for around the house and the cinch hem is useful in wet weather.
July 26, 2017
Purchased
11 months ago
Good shape and handfeel
Good!
June 14, 2017
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