ALBA OPTICS DELTA BLU GLS VZUM™ F-LENS BEETLE

The ALBA OPTICS DELTA is one of the defining silhouettes of modern cycling eyewear — combining the style and spirit of cycling's golden era with contemporary Italian optical technology.

Handmade in Italy, the DELTA was developed for riders who spend long hours on the road and experience constantly changing light conditions throughout a ride. For Australian cyclists, this often means rolling out before sunrise, riding through shifting dawn light, climbing into bright sunshine and returning home beneath a completely different sky.

This version pairs the striking Blue Glossy frame with the VZUM™ F-LENS BEETLE photochromic lens, specifically developed to automatically adapt to changing light conditions throughout the day.

Unlike fixed-category lenses, the F-LENS BEETLE transitions between Category 1 and Category 3 protection depending on UV exposure. This allows riders to maintain excellent visibility during:

• early morning bunch rides

• shaded forest roads

• cloudy winter conditions

• bright coastal roads

• intense Australian summer sunshine

• late afternoon training rides

For Australian cyclists, this versatility is one of the greatest advantages of photochromic technology. Rather than choosing between a low-light lens and a bright-sun lens, the F-LENS BEETLE continuously adjusts as conditions evolve, helping maintain visual clarity throughout the ride.

The lens is designed to enhance contrast while preserving natural colour perception, allowing riders to better identify road surfaces, gravel texture, potholes, painted road markings and changing terrain. This becomes particularly valuable when moving rapidly between shade and sunlight, a common occurrence on many Australian roads.

The DELTA frame itself is constructed from lightweight TR90, a nylon and carbon-fibre composite material chosen for its flexibility, durability and long-term comfort. At just 26 grams, the DELTA remains exceptionally comfortable during long endurance rides, fast bunch rides and gravel adventures.

Integrated ventilation slots within the lens help reduce fogging and condensation during cool starts, hard efforts and rapidly changing temperatures. The interchangeable lens system also allows future lens changes while preserving the iconic DELTA aesthetic.

At Chainsmith, we deliberately select photochromic lenses because Australian riding conditions are rarely consistent. One ride can begin in darkness, move through fog, sunshine, shade and glare before finishing under completely different conditions.

The DELTA F-LENS BEETLE adapts with you.

One lens. One ride. Every condition.

A modern Italian classic built for Australian roads.