What's the deal with the brief liner, can I wear these shorts without underwear underneath?

The Anti-odor Silver XT2® brief liner is designed to support you during activity, and you can wear these shorts without additional underwear if you prefer. The liner is a fitted brief rather than compression shorts, so some customers layer them with Mack Weldon boxer briefs for extra support during intense workouts like Pilates or yoga.

How does the 37.5® Technology keep me dry during workouts?

The 37.5® Technology (43% of the fabric blend) actively absorbs and releases moisture to regulate your body temperature and keep sweat from sitting on your skin. Combined with laser-cut ventilation panels, you'll stay dry and fresh whether you're biking, running, or training at the gym.

Are these shorts machine washable, and can I throw them in the dryer?

Machine wash cold without bleach or dry cleaning, then tumble dry low. You can iron on low if needed. This care routine keeps the 37.5® Technology and spandex working properly over time.

Mack Weldon Stratus Active Short | Lightweight Men’s Workout Shorts

IN CM

Questions about your size? Contact our experts.
Help Center

New Customer Discount

Save 20% on your first purchase of $125+

100k 5-Star Reviews

Don't just take our word for it - take theirs

Mack Weldon Rewards

Earn points that can be redeemed for cash

Micro-Brushed French terry

So you get an ultra-soft feel (that doesn’t fade in the wash).

image of man wearing navy blue sweatpants

Streamlined Fit

So you can wear them anywhere.

close up of the waist band of ACE sweatpant

Perfect Stretch + Recovery

So they’re always comfortable, but never saggy.

close up of ribbed cuff on the ankle of ACE navy blue sweatpant

Back-Ribbed Ankle Cuffs

So they maintain their shape at the hem.