Castelli

Castelli Collection at Arvada Triathlon Company

Experience world-class Italian performance with Castelli, the legendary cycling and triathlon apparel brand founded in 1876. At Arvada Triathlon Company, we proudly offer Castelli’s premium lineup of tri suits, cycling kits, jackets, and accessories—engineered for speed, comfort, and uncompromising quality on the bike, in the water, and during the run.

Why Castelli?

Castelli combines decades of Italian tailoring expertise with cutting-edge fabric technology and aerodynamic innovation. Their gear is favored by professional triathletes and cyclists worldwide for its exceptional fit, breathability, moisture management, and race-day performance—perfect for Colorado’s unpredictable weather and high-altitude racing conditions.

Featured in our collection:

• Triathlon Suits — Including the award-winning Free Sanremo and PR series with innovative pocket systems, quick-dry fabrics, and superior aerodynamics
• Cycling Bib Shorts & Jerseys — Lightweight, high-performance pieces designed for long training rides and race days
• Jackets, Warmers & Base Layers — Essential protection for cool Colorado mornings and variable mountain weather
• Run & Transition Apparel — Shorts, tops, and accessories to keep you comfortable through every leg of the race

Whether you’re crushing local races at Chatfield, training on the roads around Boulder, or tackling an Ironman, Castelli gear from Arvada Triathlon Company helps you ride faster, stay comfortable longer, and look sharp on course.

Stop by our Arvada shop to try on the latest collection, receive expert fitting advice, and build your perfect triathlon wardrobe.

Ride faster. Race stronger. Shop Castelli at Arvada Triathlon Company.