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  4. 3.1 Men's XOUNDERWEAR Liner-Shorts Midi with 2-Way Stretch XO Waist Band
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
  • 3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA
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3.1 Men's XOUNDERWEAR Seamless Liner Shorts Midi with 2-Way Stretch XO Waist Band has a proprietary highly breathable “mesh” throughout the garment to rapidly wick moisture away from your skin. Made in the USA

$35.15
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product information

  • Features
  • What is a form fit base layer
  • Tech Specs
  • Why We Made This
  • Reviews (6)

Features

  • The ultimate base layer underwear for any hot or cold weather condition.
  • The breathable XOSKIN™ technology fabric is highest rated for anti-odor/skin wellness, and for taking moisture management, skin protection, abrasion and comfort a quantum leap forward during high energy levels.
  • The body-mapped sweat traps and air channels promote maximum airflow to help you stay comfortable.
  • Say no to chafing, friction and hot spots
  • Provides full range of motion.
  • Preshrunk so you don't kick your dryer on laundry day.

Our new innovative 3.1 seamless XO-UNDERWEAR has proprietary and highly breathable “mesh” designs throughout the garment which allows perspiration to quickly pass through in vapor form. Nothing wet against the skin! This garment offers 3D body mapping with lightweight, compression zones for greater range of movement in the thighs, buttocks, hips, and quads for targeted skeletal support.  We even went the extra mile to include a unique XO-WAIST BAND with “two-way” stretch providing more flexible waist support and belly comfort. Weighing in at +-2.2 ounces it is the lightest performance underwear on the market.  Great for ultra running, football, baseball, basketball, soccer, back packing, work, military, police, and almost anything life can throw your way for work, hobby, play or professionally-XO-UNDERWEAR can handle.    

US Patents | PTFE-9,828,701 | Copper-9,469,923

XOSKIN™ Tech Specs

  • designed for:
    Running, mountain biking, yoga, cross training, skiing, gym, work--everything!
  • fabric:
    Seamless XOSKIN™ technology
  • properties:
    Moisture-management, skin protection, anti-odor, skin wellness, 3D body-mapped, chafe-resistant, preshrunk, breathable construction
  • fit:
    Athletic
  • length:
    Mid-thigh
  • inseam:
    Flat +-6 inches, Stretches to +-9 inches
  •  

When your adventure is calling, we answer with gear that goes the distance. We engineered these shorts midi from super light-weight XOSKIN™ technology fabric that is highest rated for skin comfort. The construction improves internal abrasion and skin wellness, enhances breathability, controls odor, manages moisture, dries rapidly and decreases weight. It also allows the garment to slide more easily over your skin for maximum comfort. We body-mapped these shorts midi with sweat traps and air channels so air can flow at maximum speed to enhance thermal dynamics. Get ready for the long haul!

  • Phil Battley

    2023-11-26 04:25 am

    These are completely awesome. Super comfortable, sweat wicking, nice compression on thighs. Can't imagine there is anything better out there.

  • Jeff Peters

    2023-10-29 12:12 am

    I've been wearing these for about 3 years now and I live every feature they have. No more chafing, moisture wicking helps keep everything comfortable and dry, strong and very flexible elastic that lasts for years. I just ran a marathon today and the hot shower didn't highlight any hot spots! If you run any distance, long or short, you'll need a pair of these!

  • Marshall F.

    2022-11-10 02:58 pm

    Mother of God

  • Peter Connors

    2022-09-25 11:12 am

    I've bought all the pouch underwear brands and tried lots of different liner shorts. These have been the only solution to my chafing issues. And add to that they're made in the States, I couldn't be happier.

  • Matty Milazzo

    2022-08-08 09:39 am

    These liners took my long runs from being something to dread on hot days, to the best long run experience I've ever had. They work exactly as described no gimmicks here!

  • Travis R.

    2022-05-23 12:24 pm

    These are by far the best liners I've ever worn! The 3.0 version is great but these are even better. Size chart is right on. Do yourself a favor and get a pair. You won't regret it!

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