Castelli Endurance 4 2026 Summer Bib Shorts

Comfort for endurance cycling on any route, with the most comfortable Castelli pad.

The heart of these shorts is the renowned top-of-the-range Progetto X2 Air Seamless chamois, expertly combined with a classic design. But there's more: every detail has been meticulously improved to offer you even more comfort during longer endurance rides. A great pad is only effective if it is combined with a perfect fit. This is why the stitching around the hips has been carefully applied: to create an ergonomic shape that is ideal for riding. Endurance Evolution fabric is soft on the skin while offering excellent compression and superior moisture management. Everything stays in the right place, thanks to the GIRO3 leg grips, which are incredibly comfortable. This exceptionally featured short is designed to give you long-lasting comfort over long distances.

• Weight: 193 g
• Temperature: 15°C - 35°C / 59°F - 95°F
• Fit: Tailored

Product Features:

Endurance Evolution fabric offers optimal muscle support and is drier in virtually all weather conditions

Anatomical cut for a perfect fit on the saddle

Mesh braces and back for greater breathability

Progetto X2 Air Seamless pad for further comfort and better air circulation

Grip on flat GIRO3 legs