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Mountain Bike Shorts

Mountain Bike Shorts

Tough, breathable, and built to move. Our mountain bike shorts pair durable stretch shells with pedal-ready fits and smart storage, worn solo or over a padded liner for all-day trail comfort. Room for pads, clearance for the saddle, and fabrics that shrug off brush and dirt.

Shell, Liner, or Both

Shell shorts: durable outer with pockets and pad clearance; pair with your own liner.

Shorts with a liner: a ready-to-ride system; see men's / women's shorts with liners.

Add a liner: breathable liner shorts bring the chamois; swap fresh between rides.

Trail-Ready Details

Look for articulated knees and a longer inseam that clears knee guards, secure pockets that don't bounce, and DWR-treated fabrics that shed mud and spray. Adjustable waists keep things locked in when you're out of the saddle.

Fit & Sizing

MTB shorts should fit relaxed but not baggy, with room to move over pads and leg openings that clear your knees. Use our Size & Fit Guide to dial your size.

Shop by Rider

Men's MTB Shorts & Pants • Women's MTB Shorts & Pants

Complete the Kit

Add pedal-friendly protection and browse the full Mountain Bike collection, purpose-built gear that works so well, it disappears.

Frequently Asked Questions

Find answers to common questions about PEARL iZUMi products.

  • Mountain bike shorts use a durable, relaxed-fit shell built to handle brush, dirt, and the odd crash, often paired with a padded liner. Road shorts are close-fitting Lycra with a built-in chamois. MTB shorts trade aero for durability and freedom of movement.

  • It varies. Some styles include or integrate a padded liner, while others are shell-only so you can pair your own. See men's or women's shorts with liners to build the two-piece system.

  • A shell plus a separate liner short is the most versatile setup, wash and swap liners, wear the shell solo. A built-in liner is simpler and ready to ride. Choose based on how much flexibility you want.

  • Yes. Longer inseams and roomier leg openings are designed to clear knee guards without riding up. Pair with pedal-friendly protection for tech trails.

  • Relaxed but not baggy, with enough room to move over pads and a waist that stays put when you're out of the saddle. Leg openings should clear your knees without snag. Check our Size & Fit Guide.

  • Shake off dirt, close any fasteners, wash cold, skip fabric softener, and air-dry. Reproof the DWR on shell fabrics as needed to keep shedding mud and spray.

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