August Weekend Secret Sale
C-one August Secret Time Sale 2026
For 24 hours only, every Saturday at 8:00 PM through Sunday at 8:00 PM.
The featured items remain a secret until the sale begins.
Wear the Finest Short Sleeves of Summer.
Theme: Summer Short Sleeves
This Week’s Featured Items
10% OFF
C HIGH END Merino Wool Short-Sleeve T-Shirt
Designed with a higher back collar to sit neatly under a jacket. Super100's merino wool stays breathable and dry in summer, delivering a polished look for both work and leisure.
10% OFF
C FLEX Merino Wool Short-Sleeve T-Shirt
A seamless construction from the back shoulder through the sleeves allows unrestricted movement. Ideal for golf, tennis, travel, and an active everyday lifestyle.
An Elegant Answer to Over-Air-Conditioned Spaces.
Theme: Air-Conditioning Essentials
Stay comfortable in cool offices, restaurants, and trains with
versatile merino wool essentials designed for changing temperatures.
One Reliable Piece for Summer Travel.
Theme: Obon Holidays & Travel
Lightweight, functional pieces made for travelers who want to pack less are coming soon.
Get an Early Start on Autumn.
Theme: Preparing for Autumn I
Long-sleeve pieces with refined necklines, ideal under jackets and outerwear, are on the way.
The Final Weekend of August. New Autumn Classics Arrive.
Theme: Preparing for Autumn II — Final Week
Add dimension around the neckline and create a refined autumn look.
What Is C-one? 100% Merino Wool Clothing for Refined Everyday Life
Soft and Non-Itchy
Super100's merino wool uses exceptionally fine fibers for a soft feel with minimal itch or irritation, even directly against the skin.
Comfort in Every Season
Natural temperature and moisture regulation keeps you comfortable in summer air conditioning and winter cold.
Machine Washable
Despite being wool, it is machine washable—no dry cleaning required, so it stays fresh for everyday wear.
Made in Japan · Crafted in Fukushima
Each piece is carefully finished by skilled craftspeople in Fukushima for lasting Japanese quality and durability.
Free Shipping Across Japan
Free shipping throughout Japan, with delivery typically within 2–4 business days after your order.
August Weekend Time Sale Schedule
| WEEK | SALE PERIOD | THEME | FEATURED ITEMS | DISCOUNT |
|---|---|---|---|---|
| WEEK 1 |
Fri, Jul 31, 8:00 PM– Sun, Aug 2, 8:00 PM ★ 48 hours for Week 1 only |
Summer Short Sleeves | Secret Until Launch | 10% OFF |
| WEEK 2 |
Sat, Aug 8, 8:00 PM– Sun, Aug 9, 8:00 PM |
Air-Conditioning Essentials | Secret Until Launch | 10% OFF |
| WEEK 3 |
Sat, Aug 15, 8:00 PM– Sun, Aug 16, 8:00 PM |
Obon Holidays & Travel | Secret Until Launch | 10% OFF |
| WEEK 4 |
Sat, Aug 22, 8:00 PM– Sun, Aug 23, 8:00 PM |
Preparing for Autumn I | Secret Until Launch | 10% OFF |
| WEEK 5 |
Sat, Aug 29, 8:00 PM– Sun, Aug 30, 8:00 PM |
Preparing for Autumn II | Secret Until Launch | 10% OFF |
Size Exchanges Available
Within 7 days · Unworn items only
Multiple Payment Options
Cards, convenience stores, Paidy, and more
Fast Dispatch
Ships within 2–4 business days
Gift Wrapping
Gift box available for ¥500
Saturday at 8:00 PM—Don’t Miss the Reveal.
Weekend-only special prices. The featured items are revealed when each sale begins.
Shop All C-one Products