ALTALIST KAKU SP4 INTERCHANGEABLE SPORTS EYEWEAR

Product Description

Engineered for ultimate versatility, the KAKU SP4 Frameless Sports Sunglasses feature an innovative interchangeable dual-lens system. With a completely modular layout, swapping lenses is quick and seamless. The minimalist frameless architecture drastically minimizes weight while providing a panoramic, unrestricted field of view for enhanced riding safety.

Each kit includes two premium lens types to tackle shifting outdoor conditions:

1. Photochromic Lens: Intelligently reacts to ambient UV sunlight, darkening rapidly to shield your eyes from blinding glare and clearing up instantly when transitioning into the shade.

2. REVO Mirror Lens: Specifically tuned to block harsh, direct sunlight and optimize visual clarity on high-exposure daytime routes.

Crafted with an ultra-lightweight, high-impact TR90 frame-and-temple build, these glasses offer exceptional flexibility, durability, and shatter resistance during accidental impacts. Equipped with a selection of three interchangeable nose pads (Sizes S, M, L) and pressure-reducing, soft-grip temples, the KAKU SP4 customizes beautifully to any face shape for a slip-free, all-day comfortable fit.

Additionally, it comes with a detachable prescription inner frame (supporting myopia up to -4.00 diopters and astigmatism up to -2.00 diopters), making it an ideal choice for a wide array of high-speed outdoor sports.

(Optional Upgrade Lens available separately: VIV20 Photochromic Mirror Lens for optimized contrast and heightened motion recognition).

Key Features

• Interchangeable Dual-Lens Kit: Includes both a Photochromic lens and a daytime REVO Mirror lens for all-weather adaptability.

• Unrestricted Frameless View: Lightweight, open-rim profile yields a panoramic field of vision and cuts unnecessary weight.

• Rugged TR90 Build: High-toughness frame elements guard against impact fractures and prevent facial friction injuries.

• Tailored Fitment Layout: Supplied with 3 different nose pad thicknesses (S/M/L) alongside soft-touch, pliable temple arms.

• Prescription Insert Included: Comes with a clip-on optical frame (supports up to 400 degrees myopia / 200 degrees astigmatism).

Specifications

• Brand: ALTALIST

• Model: KAKU SP4

• Dimensions: 139mm x 60mm x 125mm

• Weight: 27g

• Frame Material: TR90

• Default Photochromic Lens: PC Photochromic (Lens Category: Cat.0–3 | Impact Strength: Izod:2)

• Default REVO Mirror Lens: PC Coated Mirror (Lens Category: Cat.3 | Impact Strength: Izod:2)

• Optional VIV20 Lens Upgrade: PC VIV20 Photochromic Mirror (Lens Category: Cat.1–3 | Impact Strength: Izod:2)

• What's in the Box: Eyewear, Hard Storage Case, Pouch, Cleaning Cloth, Prescription Inner Frame, 3x Nose Pads (Size M pre-installed, Sizes S & L included), User Manual