Choosing Cycling Shorts Padding Thickness: Who Are Thin, Medium, and Thick Pads For?

Introduction

First-time cycling shorts buyers often fall into the myth: “The thicker, the more comfortable?” In reality, riding time, saddle shape, and gender all affect the choice. This article organizes the thickness categories of cycling short pads and the logic behind choosing them.

Pad Thickness Categories

Why Is Too Thick Actually Uncomfortable?

1. Inner thigh chafing: Thick pads increase the gap between the thighs and the saddle
2. Heat buildup: Thick pads dissipate heat poorly, causing stuffiness and rashes over long periods
3. Poor shape conformity: Thick pads are easily compressed and deformed during pedaling
4. Mismatch with the saddle: A hard saddle plus a thick pad creates a double protrusion, which actually presses against the sit bones

Saddle Shape Recommendations

Short-Nose Hard Saddles (e.g., Specialized Power)

Pair with a thin or medium pad.

Standard Long-Nose Saddles (e.g., Selle Italia SLR)

Pair with a medium-thick pad.

Soft Comfort Saddles (e.g., Selle Royal)

Pair with a thin pad (to avoid double softness).

TT/Triathlon Saddles (e.g., ISM PN)

Pair with a medium-thick pad plus a front-section thickened design.

Men’s and Women’s Differences

Men’s Design Highlights

• Central split channel
• Front ventilation holes
• Addresses prostate pressure

Women’s Design Highlights

• Wider front and rear coverage
• Deeper central split channel
• Addresses vulvar and pubic bone pressure

Brands: Castelli Free Aero RC, Liv Race Day, Specialized RBX Comp.

Cycling Short Cut Differences

Mainstream Brand Pad Comparison

Practical Advice

• First pair of cycling shorts: Bib Short + medium-thick pad (10–13mm), NTD 3,000–6,000
• Long distances (island tours, 100km+ rides): 14–16mm thick pad
• Triathlon-specific: choose styles with quick-dry and chlorine-resistant treatment
• Fitting tips: wear them and sit on your own bike to pedal for 10 minutes, feeling the sit bone position
• Do not layer underwear: wear the shorts directly (the pad already includes antibacterial treatment)
• Change immediately after riding: wearing wet shorts for extended periods can easily cause fungal infections or folliculitis
• Washing method: hand wash in cold water or machine wash in a laundry bag, avoid tumble drying

Cycling Short Lifespan

• Mid-range shorts: 50–80 washes / approximately 150–200 rides
• High-end shorts: 100+ washes
• Replace when the pad becomes pilled or stiff

Conclusion

For cycling short pads, “fit matters more than thickness.” A medium-thick pad (10–13mm) covers 80% of riding scenarios, and spending more on a thicker pad does not necessarily mean more comfort. It is recommended to choose a mid-range brand (Castelli, PEARL, Liv) for your first pair, then decide whether to upgrade or adjust the thickness after riding 1000km.

Related Reading

• Bicycle Saddle Selection and Fitting Guide: Finding Your Perfect Saddle
• Road Bike Saddle Selection Guide: Sit Bone Width Measurement and Long-Distance Comfort Analysis
• Road Saddle Selection Guide: SIT BONE Measurement and Saddle Shape Matching
• Saddle Selection and Adjustment: Sit Bone Width Measurement and Saddle Shape Matching Logic