Reviews

Rio Optimum Paper Relax T-Shirt (C3fit / Unisex)

Oct 26, 2025

Summer loungewear

This is the best piece to wear in an air-conditioned room. You can stay comfortable even at a slightly lower temperature.

Summer is fine
Age: 40s
Usage Scene: -
Gender: Male
Fit: just right
Height: -
Size: 1
Weight: -
Color: Dark Charcoal
Aug 24, 2025

Texture is

This is just my personal opinion, but I had imagined it to have a smooth texture, but it was a bit different, so I returned it.
The color was good.

Mogu
Age: 40s
Usage Scene: -
Gender: female
Fit: large
Height: -
Size: 0
Weight: -
Color: grayish white
Aug 19, 2025

Cool

You can feel cool even in summer.
The color is more grayish than white.

Te
Age: 30s
Usage Scene: Lifestyle
Gender: Male
Fit: Just right
Height: 176-180cm
Size: 4
Weight: 71-75kg
Color: Grayish White
Jul 06, 2025

Comfortable

Good for summer

Sakura
Age: 20s
Usage Scene: -
Gender: -
Fit: just right
Height: -
Size: 1
Weight: -
Color: ink navy
Apr 30, 2025

Silky

I wear it every year, and the fabric itself is durable and shows no signs of stretching.

.
Age: 20s
Usage Scene: -
Gender: -
Fit: just right
Height: -
Size: 4
Weight: -
Color: dark charcoal
Nov 15, 2024

Smooth and easy to wear

I wear it as loungewear, and it's comfortable.

Pocha
Age: 20s
Usage Scene: Others
Gender: Male
Fit: Just right
Height: 166-170cm
Size: 2
Weight: 51-55kg
Color: DC
Oct 08, 2024

Convenient to use

I was going to reorder, but it's out of stock, unfortunately.
It feels a bit thick and sturdy, so I think it's very practical.

Omochi
Age: 50s
Usage Scene: Business/School
Gender: Female
Fit: Large
Height: 166-170cm
Size: 1
Weight: 51-55kg
Color: Inky Navy
Jun 23, 2024

With this, it's the strongest

I bought it as loungewear. Since the long sleeves were comfortable, I chose this one. It has infrared heat, so it's slightly warm and comfortable during the cold rainy season.

Tama
Age: 50s
Usage Scene: Lifestyle
Gender: Female
Fit: Just right
Height: 156-160cm
Size: 0
Weight: 46-50kg
Color: GW