Pearl Izumi Infinity LD Running Shorts - Men's


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For morning runs or evening sprints, rely on the Pearl Izumi Men's Infinity LD Running Shorts will keep you comfortable and protected. The full Minerale™ liner has superior moisture transfer and dries 50% faster than regular performance polyesters, so you stay dry no matter how you're working or how many miles you log. Lightweight and designed with secure external pockets, the Pearl Izumi Infinity LD Running Shorts for men also feature reflective elements to keep you safe in low-light times of the morning or evening.


  • Elite Transfer fabric is lightweight and provides superior moisture transfer
  • Smooth front panel with elasticized sides and back with stretch draw cord for superior comfort and fit
  • Two hook and loop and two zippered pockets
  • Fully-integrated Float liner uses Transfer fabric with Minerale™ which provides optimal moisture transfer, faster dry time and odor absorption
  • Reflective elements for low-light visibility
  • Up 50
  • Semi-form fit
  • Inseam: 7 in (medium)

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Review Summary

4.1 out of 5

8 Reviews

  • Build quality: 3
  • Performance: 3
  • Great design: 2
  • Lasts forever: 2

  • Bad design: 1
Comfort: 5 / 5
Durability: 5 / 5
Quality: 4.5 / 5
Fit: 4 / 5

8 Ratings & Reviews

Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5
45-54 yrs

Light as a feather
May 16, 2011

Very comfortable, like wearing nothing at all. I expected bigger side pockets. Not much room for anything bigger than a hotel key card. But overall, the best pure running short I have ever worn.

Pros: Great design, Performance, Ease of use

55-64 yrs

Runner Review
May 06, 2011

I have been running for over 40 years and have high expectations of my running gear. Just like the gear for cycling this Peral product does not disappoint and is in the same high calibre as Asics running shorts. It is breathable, comfortable, and durable.

Pros: Great design, Build quality, Performance
Comfort: 5 / 5
Durability: 5 / 5
Quality: 4 / 5
from Indiana
45-54 yrs

October 17, 2011

I purchased these as a gift. Upon receipt I had qustions about the construction of the product - called customer service - and although they could not answer my questions they referred me to Pearl Izumi direct. I was very pleased with Altrec's concern as well as the diligence they gave my inquiry. Ultimately, I was very satisfied with PI's response as well. I've had nothing but rave reviews on this product from several "runner" friends - I'm sure this product will live up to it's specs!

Pros: Lasts forever, Performance, Great value

Good for racing and training
September 01, 2010

I bought these for the pockets and they were well worth it. 2 zip pockets on the sides are good for ID, cash, and larger items. 2 velcro pockets are the right size for a gel and keys. And the float liner is very comfortable.

Comfort: 1 / 5
Durability: 2 / 5
Quality: 2 / 5
FitClothes: 1 / 5
from Wasatch Mountains, UT
45-54 yrs

The boys arent happy
May 11, 2011

I've only worn these on one ten mile trail run and they are WAY too small. Not only is the waist measure wrong (I'm a 33" waist and medium shows as 32"-34"), the leg openings of the inner brief and overall size are extremely constricting. Because of this I was forced to guess on Durability and Quality. Otherwise the features , look, and apparent construction are all good. That is the only reason I'd recommend this product. I tossed the tags, so I guess I just need to fast for a couple of weeks ;)

from Silicon Valley, CA.

Outstanding short
March 10, 2011

These shorts are very comfortable and lightweight and make for a great run every time out. Pearl Izumi is a wonderful brand that is quite difficult to find on store shelves. Overall great deal.

Comfort: 2 / 5
Durability: 4 / 5
Quality: 5 / 5
FitClothes: 2 / 5
from New York
45-54 yrs

Not For Everyone, But Maybe For You
May 06, 2011

These Pearl Izumi shorts are of extreme high quality. The materials are excellent as is the workmanship. The liner fits comfortably and does a superior job of transferring moisture, keeping you dry. The shorts weigh nothing. The product is also properly priced for the quality. There are two problems, at least for me. The first is that the fit is a little weird. Waist is fine and the size chart is accurate but they are very snug in width. Side movement of your legs is a little restricted and they just feel clingy. It feels like the liner is stretchy and wants to move with you but the outer short stops it. I'm of normal build and athletic. Perhaps if I were slimmer, this would not be a problem. My second issue is that the rear pockets(empty) seem to stick out a bit as if there's too much material in that area, creating a baggy look in the rear. Overall, the pros outweigh the cons, especially for slimmer people.

Pros: Build quality, excellent materials, Cons: Bad design, fit
Comfort: 5 / 5
Durability: 5 / 5
Quality: 5 / 5

Awesome Running Shorts
May 31, 2011

Bought these for a longer running short to add to my arsenal of short shorts. These fit the bill perfectly! 5" inseam shorts are still too short for me and 8-9" are too long. These are perfect. The pockets are great for running and the material is fluid and soft. The two backs pockets could be loaded down with gels, ipod, credit card or a key. Great for longer runs when you dont know where you will end up!

Pros: Great design, Build quality, Lasts forever, Performance

Also Available

Pearl Izumi Men's Infinity LD Running Shorts Photo

Black, Black/ Rust, Black/ True Red and Shadow.

Available sizes, while supplies last, include size small, size medium, size large, size extra large and size extra extra large: s, m, l, xl, xxl.

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