Castelli Aria 2 vest 2026

The lightest and most packable wind shell vest that fits close to body with a stretch breathable back

The Aria Vest has always been one of the most versatile pieces in the collection. Now, it’s even better. They’ve refined the fit for a more ergonomic shape and added reflective elements with the updated logo and wordmark, enhancing visibility while keeping the aesthetic clean and modern. It blocks wind where it matters most, breathes through mesh side panels, and fits close to the body, thanks to stretch inserts on the sides and shoulders — no flapping, no drag, no bulk. It’s the ideal layer for cool starts, long descents, or unpredictable weather, and when things heat up, it packs down into its own pocket to disappear into your jersey pocket or saddlebag. Minimal weight. Maximum function. A staple, for every ride.

Features

• Ultralight windproof woven microfiber front
• Striped mesh fabric at sides and back is stretchy to prevent fabric flapping in wind
• Folds up extremely small
• Integrated stuff sack
• YKK® Vislon® top- and bottom-opening zipper
• Reflective Castelli logos

Tech Specs

• Insulation: 1/5
• Waterproofness: 1/5
• Windproofness: 4/5
• Breathability: 3/5
• Lightness: 5/5
• Temperature:10°C - 18°C / 50°F - 64°F
• Fit: Tailored