Activewear

Knit Loose Fit Activewear

Your workout isn’t complete without the right foundation — activewear that moves with you, keeps you comfortable, and supports your performance. At HisRoom, we carry a wide range of men’s athletic underwear and base layers engineered for both endurance and ease. Whether you're hitting the gym, going for a run, or layering up for a winter adventure, we’ve got you covered.

Items 1-24 of 38

  1. Yoga Breathable ShortYoga Breathable Short
    Gregg Homme 190415

    Yoga Breathable Short

    $52.00 $39.00
  2. Originals 3 Stripes Knit ShortOriginals 3 Stripes Knit Short
    Adidas gm2365

    Originals 3 Stripes Knit Short

    $22.00 $16.50
  3. Baggies 5 Inch Quick Dry Swim ShortsBaggies 5 Inch Quick Dry Swim Shorts
    Patagonia 57022

    Baggies 5 Inch Quick Dry Swim Shorts

    $65.00 $47.95 - $58.95
  4. Eversoft Short Sleeve Pocket T-Shirt - 2 PackEversoft Short Sleeve Pocket T-Shirt - 2 Pack
    Fruit Of The Loom 2p3730p

    Eversoft Short Sleeve Pocket T-Shirt - 2 Pack

    $25.00 $17.50
  5. Tall Man Tech Performance PoloTall Man Tech Performance Polo
    Under Armour 1290140t

    Tall Man Tech Performance Polo

    $45.00 $33.75
  6. Sherpa Back Knit ShortSherpa Back Knit Short
    Tommy Bahama tb32403

    Sherpa Back Knit Short

    $64.00 $47.95
  7. UA Freedom Tech BFL ShortUA Freedom Tech BFL Short
    Under Armour 1359349

    UA Freedom Tech BFL Short

    $30.00 $22.50
  8. Big & Tall Mix & Match ShortBig & Tall Mix & Match Short
    Boss Hugo Boss 0469862

    Big & Tall Mix & Match Short

    $58.00 $42.95
  9. Eversoft Open Bottom SweatpantEversoft Open Bottom Sweatpant
    Fruit Of The Loom cwop00

    Eversoft Open Bottom Sweatpant

    $23.00 $14.95
  10. Core Knit Sweat PantCore Knit Sweat Pant
    Reebok 213lp47

    Core Knit Sweat Pant

    $25.00 $8.99
  11. UA ABC Camo Short Sleeve T-ShirtUA ABC Camo Short Sleeve T-Shirt
    Under Armour 1357727

    UA ABC Camo Short Sleeve T-Shirt

    $25.00 $18.75
  12. Essential Logo Sweat PantEssential Logo Sweat Pant
    Puma 586720

    Essential Logo Sweat Pant

    Rating:
    100%
    $45.00 $24.95
  13. Big Man Eversoft Cotton Pocket T-Shirt - 2 PackBig Man Eversoft Cotton Pocket T-Shirt - 2 Pack
    Fruit Of The Loom 2p3730x

    Big Man Eversoft Cotton Pocket T-Shirt - 2 Pack

    $29.00 $20.30
  14. Tall Man Tech 2.0 V-Neck T-ShirtTall Man Tech 2.0 V-Neck T-Shirt
    Under Armour 1328190t

    Tall Man Tech 2.0 V-Neck T-Shirt

    $25.00 $18.75
  15. Big Man Eversoft Open Bottom SweatpantsBig Man Eversoft Open Bottom Sweatpants
    Fruit Of The Loom cwop00x

    Big Man Eversoft Open Bottom Sweatpants

    $25.00 $16.95
  16. Sport Soft Lounge ShortSport Soft Lounge Short
    Reebok 211lj08

    Sport Soft Lounge Short

    $20.00 $8.99
  17. Fleece Lounge ShortFleece Lounge Short
    Reebok 211lj09

    Fleece Lounge Short

    $20.00 $8.99
  18. Locker Jacquard Loose Fit T-ShirtLocker Jacquard Loose Fit T-Shirt
    Under Armour 1351354

    Locker Jacquard Loose Fit T-Shirt

    $30.00 $12.99
  19. Sportstyle Logo Short Sleeve T-ShirtSportstyle Logo Short Sleeve T-Shirt
    Under Armour 1329590

    Sportstyle Logo Short Sleeve T-Shirt

    $25.00 $17.95
  20. Tall Man Tech Graphic Loose Fit ShortTall Man Tech Graphic Loose Fit Short
    Swim
    Under Armour 1306443t

    Tall Man Tech Graphic Loose Fit Short

    $30.00 $22.50
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Activewear Athletic Underwear | Men’s Sports Underwear & Briefs | Trusted Brand Names | HisRoom

Explore Athletic Underwear For Men

For sports and exercise, your underwear can be your best partner. Special construction, fabrics, and innovative properties will keep you cool, comfortable, and supported through any kind of workout. From jockstraps to long johns, there are styles for everything you love to do. Here, you’ll find moisture-wicking, odor-resistant, and compression-enhanced designs that are built to go the distance with you.

Performance-Focused Fabrics and Fit

Typically, sports underwear is designed to be lightweight, non-chafing, and offer some sort of muscle support. Look for thermal properties that keep you warm in cold weather and help wick away moisture to keep you dry and cool during any sport. For many activities, you'll also want underwear that is form-fitting without restricting movement. There are so many styles available that you'll be able to create the complete sports underwear wardrobe! Styles include boxer briefs, boxers, jocks with contoured pouches for support, stretch trunks, compression shorts and men’s sport briefs.

Cold Weather Layers and Compression Gear

For cooler weather, we offer stretch leggings, often with functional fly-front. Skiers and snowboarders will appreciate classic long johns, many of which are constructed from soft stretch fabric and have contoured pouches. Serious athletes love compression shorts, which come in several lengths. Some are made of breathable mesh and come with a cup pocket. The four-way stretch provides muscle support for less fatigue and improved performance.

Why Shop Sports Underwear at HisRoom?

At HisRoom, we understand that fit, function, and feel matter — especially when it comes to your athletic underwear. That’s why we carry trusted athletic brands with proven performance technology. With detailed product descriptions, real customer reviews, and expert fit guides, shopping is simple and stress-free. Whether you’re building your workout wardrobe or just need a few go-to essentials, HisRoom makes it easy to find high-performance underwear and base layers you’ll reach for again and again.

FAQs

What is the difference between athletic underwear and regular underwear?

Athletic undergarments are designed with moisture-wicking fabrics, stretch support, and minimal seams to reduce chafing during movement. Regular underwear may not offer the same breathability, support, or performance features.

Is athletic underwear worth it?

Yes. If you’re active, these underwear options help prevent irritation, overheating, and discomfort during workouts. They provide better support and can improve overall performance and recovery.

What are the benefits of sports underwear?

Underwear for sports keeps you cool, dry, and supported during activity. They reduce friction, support muscles, and adapt to movement, making them ideal for everything from daily workouts to outdoor adventures.

How tight should these underwear be?

It should feel snug but not restrictive. A proper fit ensures support and prevents chafing, while still allowing full range of motion. If it cuts in or rides up, try a different size or style.