Skip to content

Free shipping over USD $100 · Eyewear comfortable enough for every day

Your Everyday
Comfort Technology
Shop All
Customer Stories
About O4i

Language

Comfort Technology

Customer Stories

Language

Account

Other sign in options Sign in

Orders
Profile

Account

Other sign in options Sign in

Orders
Profile

Your cart is empty

Have an account? Log in to check out faster.

Continue shopping

熱賣產品

Skip to results list

2 items

Sort

Sort Most relevant

Featured

Most relevant

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

Column grid

Column grid

Filter

Sort

Sort Most relevant

Featured

Most relevant

Best selling

Alphabetically, A-Z

Alphabetically, Z-A

Price, low to high

Price, high to low

Date, old to new

Date, new to old

AIRA Series｜ Far Infrared Functional Optical Glasses TF013D
AIRA Series｜ Far Infrared Functional Optical Glasses TF013D
AIRA Series｜ Far Infrared Functional Optical Glasses TF013D

$99.00 USD
KRONOX Series｜Far Infrared Functional Optical Glasses TF029D
KRONOX Series｜Far Infrared Functional Optical Glasses TF029D
KRONOX Series｜Far Infrared Functional Optical Glasses TF029D

$99.00 USD

Far Infrared Tech, Ultimate Eye comfort

O4i specializes in advanced eyewear technology, combining proprietary Infrared Materials and high-oxygen designs to redefine visual wellness for both sports and daily optical wear.

Online store Online store

Shipping & Delivery
Returns and Exchanges

About O4i About O4i

Brand Story
Product Technology

© 2026 o4i

Privacy policy

Search

Search

Products

AEGIS Series｜Far Infrared Sports Sunglasses TF022

AEGIS Series｜Far Infrared Sports Sunglasses TF022

Regular price $1,288.00 USD Sale price $899.00 USD
AERON Series｜Far-Infrared Magnetic Sunglasses TF018M

AERON Series｜Far-Infrared Magnetic Sunglasses TF018M

Regular price $1,688.00 USD Sale price $1,099.00 USD
AEROX Series｜Far Infrared Optical Glasses TF018D

AEROX Series｜Far Infrared Optical Glasses TF018D

$1,398.00 USD
AIRA Series｜ Far Infrared Functional Optical Glasses TF013D

AIRA Series｜ Far Infrared Functional Optical Glasses TF013D

$99.00 USD