Endurance 4 Short - Men's

What Our Gearhead® Experts Are Saying:

"I rely on the Endurance 4 Short for indoor training and hot-weather riding. It’s got the same performance feel as my go-to bibs—tight, supportive, and well-ventilated—but without the straps. The Progetto X2 pad is unbeatable for long sessions."

Built for cyclists who want high-performance comfort without bib straps, the Endurance 4 Short packs in many of the same features as its bib counterpart. Castelli’s Progetto X2 Air Seamless chamois uses a two-layer design to reduce friction, improve airflow, and offer targeted support on long, grueling rides. A smooth top layer moves naturally with the body, while multi-density foam beneath absorbs shock and road vibration over extended hours.

The short itself is made from Castelli’s Endurance Evolution fabric—a compressive, high-stretch material that stabilizes muscles and maintains airflow. The anatomic cut enhances fit in the saddle, while the wide waistband offers support without the need for bib straps. GIRO3 leg grippers keep everything locked in place without squeezing too tight or riding up.

Perfect for warm-weather rides, indoor training sessions, or cyclists who simply prefer the feel of shorts over bibs, the Endurance 4 Short delivers top-tier comfort and race-ready performance.