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Levi's 511 Slim Fit Flex Men's Jeans vs Levi's 511 Slim Performance Cool Jeans

Both are the same 511 slim cut, so the choice comes down to fabric. The 511 Slim Fit Levi's Flex is the everyday pick: soft, forgiving denim with more give from the first wear. The 511 Slim Performance Cool is the better hot-weather and active pair, with breathable, moisture-wicking fabric and a hint of stretch. Owners of both praise the fit; the Flex wears in faster, while the Performance Cool stays cooler and holds a cleaner look in heat.

  • Choose the 511 Slim Fit Levi's Flex if you want a soft, comfortable everyday jean that moves with you and feels broken in from day one.
  • Choose the 511 Slim Performance Cool if you run warm, live in a hot climate, or want breathable, moisture-wicking denim for active days.

Prices

  • Levi's 511 Slim Fit Flex Men's Jeans: $26.00 at Poshmark (last seen Nov 13)
  • Levi's 511 Slim Performance Cool Jeans: $26.00 at Poshmark (last seen Nov 13)
  • Difference: both cost the same at the latest prices (Nov 13)
Levi's
511 Slim Fit Levi’s Flex Men's Jeans

Levi's 511 Slim Fit Flex Men's Jeans

511 Slim Fit Levi’s Flex Men's Jeans

$26.00at PoshmarkChecked Nov 13
See all prices and details
Visit Poshmark
Pros
  • Flex denim gives more movement and comfort from day one
  • Versatile slim-straight cut works with most shoes
  • Soft hand-feel that breaks in fast
  • Classic 511 fit owners return to
Cons
  • Less cooling than Performance Cool in heat
  • Not moisture-wicking
  • Can bag at the knee over time
Levi's
Levi’s Men's 511 Slim Performance Cool Jeans

Levi's 511 Slim Performance Cool Jeans

Levi’s Men's 511 Slim Performance Cool Jeans

$26.00at PoshmarkChecked Nov 13
See all prices and details
Visit Poshmark
Pros
  • Performance Cool fabric is breathable and moisture-wicking
  • Lightweight for hot days and active use
  • Stretch keeps the slim cut comfortable
  • Clean dark wash with iconic arcuate stitching
Cons
  • Firmer out of the bag than Flex denim
  • Cooling fabric may feel thinner
  • Only one wash named in this listing

What separates them

Levi's 511 Slim Fit Flex Men's JeansLevi's 511 Slim Performance Cool Jeans
Fabric technologyLevi's Flex denim for added mobility and givePerformance Cool fabric that is breathable, lightweight and moisture-wicking
CompositionCotton blend with Flex stretch99% cotton, 1% elastane with a hint of stretch
Best climateAll-season everyday wearWarm weather and active use
FitSlim in the thigh, straight to the ankleSlim throughout, narrow through seat and thigh, sits below the waist
Break-in feelSofter hand-feel soonerCrisper denim that relies on stretch for comfort
DetailingStandard 511 five-pocket buildIconic arcuate stitching, zip fly, five-pocket styling
Wash optionsMultiple washes across listingsNamed Seaside Rinse Cool dark wash

Price history

  • Levi's 511 Slim Fit Flex Men's Jeans: lowest $26.00 on Nov 13 at Poshmark.
  • Levi's 511 Slim Performance Cool Jeans: lowest $26.00 on Nov 13 at Poshmark.

Prices at every store

Levi's 511 Slim Fit Flex Men's Jeans

  • PoshmarkNew

    In stock

    $26.00+ $6.49 shippingChecked Nov 13
    Visit Poshmark
  • eBayNew

    In stock

    $34.95Free shippingChecked Nov 13
    Visit eBay
  • Levi's® SecondhandNew

    In stock

    $35.00Checked Nov 13
    Visit Levi's® Secondhand
  • PoshmarkNew

    In stock

    $36.00+ $6.49 shippingChecked Nov 13
    Visit Poshmark

Store links may earn us a commission.

All 7 stores and price history →

Levi's 511 Slim Performance Cool Jeans

  • PoshmarkNew

    In stock

    $26.00+ $6.49 shippingChecked Nov 13
    Visit Poshmark
  • eBayNew

    In stock

    $34.95Free shippingChecked Nov 13
    Visit eBay
  • PoshmarkNew

    In stock

    $36.00+ $6.49 shippingChecked Nov 13
    Visit Poshmark
  • WhatnotNew

    In stock

    $39.00+ $8.35 shippingChecked Nov 13
    Visit Whatnot

Store links may earn us a commission.

All 6 stores and price history →

What reviewers say

Levi's 511 Slim Fit Flex Men's Jeans

Owners of the 511 generally rate the fit highly, calling it a reliable everyday slim that isn't too tight. The Flex fabric draws praise for comfort and movement, though some note the stretch softens with wear.

What people mention
  • FitPraisedOwners say the slim thigh and straight leg hit a middle ground that suits most builds.
  • StretchMixedThe Flex denim is comfortable from the start, but some find it loosens over a day of wear.
  • VersatilityPraisedReviewers wear them with sneakers, boots and casual shoes alike.
  • DurabilityPraisedMany report the jeans hold up well through regular washing and wear.

Levi's 511 Slim Performance Cool Jeans

Owners of the 511 line praise the slim-but-not-skinny cut and the stretch that keeps them comfortable through the day. The Performance Cool fabric draws positive notes for warm weather, while some complain the leg runs tighter than expected and the denim feels thin.

What people mention
  • FitPraisedOwners like the slim cut that stays roomy enough through the thigh.
  • StretchPraisedThe elastane blend lets the jeans move without bagging out.
  • Cooling fabricPraisedPerformance Cool denim is described as breathable and light in heat.
  • Leg tightnessCriticisedSome buyers find the slim leg and opening snugger than expected.

Questions and answers

Which is better for hot weather?
The 511 Performance Cool. Its fabric is breathable, lightweight and moisture-wicking, which the Flex denim is not designed for.
Which feels more comfortable on day one?
The Flex. Its stretch denim has more give out of the bag, while the Performance Cool starts firmer and relies on its 1% elastane.
Do they fit the same?
Nearly. Both are 511 slim, but the Performance Cool is narrow through the seat and thigh and sits below the waist, so try your usual 511 size first.
Which lasts longer?
Both are cotton denim with stretch and hold up similarly with cold washes and air drying. The Flex may soften and bag sooner; the Performance Cool keeps its shape but is lighter.
Is the Performance Cool worth stepping up to?
Yes if you run warm or are active. Otherwise the Flex covers everyday wear with more initial comfort.

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More comparisons

  • 511 Slim Fit Levi’s Flex Men's Jeans vs Levi's Men's 511 Slim Fit Jean
  • Levi’s Men's 511 Slim Performance Cool Jeans vs Levi's Men's 511 Slim Fit Jean
  • Levi's Men's 511 Slim Fit Jeans vs Levi’s Men's 511 Slim Performance Cool Jeans