Felix Flex Slim Tapered Fit Performance Pant Khaki Heather



Fits True to Size, so we recommend ordering your normal waist size


  • Lightweight, Quick-Dry Fabric
  • Perfect for hot weather
  • Slant pockets
  • Button closure, zip fly
  • Poly/Spandex blend
  • Machine wash cold, Air dry
  • Imported


The Felix Flex is a new super lightweight pant that is a life-saver in warm weather. Inspired by modern golf pants, the Felix Flex is made from a quick-dry fabric that features a hint of stretch for comfort and mobility. The Felix also has slant pockets, which makes them a bit dressier, welted back pockets, and single button closure.

Like all pants from Under 510, the Felix Flex pants come in a slim tapered fit so they will fit the shorter man perfectly, making him look leaner and taller. Try them in all four colors: Charcoal, Dress Blues, Galaxy Blue, and Khaki Heather.

How to Measure Inseam

How to Find Your Inseam Length

A Smart
Warm-Weather Golf Pant

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Khaki Heather Felix Flex performance pants

I found out about Under 5'10 by doing a little research on the internet. I tried them b/c they had reasonable prices for their khakis. I am 5'8" and have always accepted that my pants never fit right. My waist size is 32". It never occured to me that there were pants with a shorter inseam than 30". I decided to give these pants a try and ordered the 28" inseam. I'd never ordered pants online before, so I was a little hesitant. However, the thought of having pants that actually fit right the first time motivated me to go through with it. These performance khakis were the first pair I ordered. The ordering process was super easy, you just click the box on the size you want, put in your information for shipping, etc, and that's it. They send you an e mail confirming your order and they even give you a link to track your order. I received my pants within a weeks time and was so excited to finally try them on. I am happy to report that they fit perfectly. It was so nice to have pants to fit like you see the models wearing in the clothing ads. I was very satisfied with my purchase.