7 Best Tried and True Japanese Men's Cooling Undershirts in 2022 (Uniqlo, Mizuno, and More)

The FREEZE TECH LIFE STYLE LINE Cooling Shirt V-Neck T-Shirt by Liberta is made with a special "ice-shock" contact cooling material that is said to provide a long-lasting cooling sensation. While the shirt felt somewhat tight, the fabric itself is very stretchy, which made it extremely easy to move around in.

The hem does not stick out from the pants when tucked in, which is another bonus. The silky fabric feels incredibly comfortable when worn and was highly rated for its texture. It's very breathable and lets a breeze pass through it, and also dries quickly, which helps to keep you dry even on a sweaty day.

This had great deodorizing strength and would be suitable for those who are odor-sensitive. With a Q-max value of 0.248W/cm2, this was not the most cooling inner shirt, but that allows it to be worn year-round.

The COOL HERTZ V-Neck Short Sleeve Undershirt by Konaka is printed with a special artificial mineral paint, which makes it provide a long-lasting cooling sensation. With a high Q-max value of 0.323 W/cm2, this undershirt provides an extremely chill feeling when worn, which makes going out on a hot summer day feel like a breeze.

The fabric is smooth to the touch, and the breathability and quick drying properties are also decent, which will help to keep you feeling dry all day. But it was not as stretchy as others, and thus led to some feeling of restraint when arms were raised. This shirt may not be the best for sports-related activities, but should present no problems as an undershirt for business or daily use.

The deodorizing properties were rated slightly lower, as we found a slight sour and unpleasant smell when this undershirt was not dried properly. We recommend thorough cleaning and drying, especially for those who tend to sweat more.

The Men's Shirt Round Neck T-Shirt, part of a collaboration between Wacoal Men and Narifuri, is an undershirt made for cyclists and is made with Cordura nylon fabric. The three pockets on the back are unique to the cycle-friendly design. 

With a relatively high Q-max value of 0.262 W/cm2, the shirt provides a decent cooling sensation. The fabric stretches well and does not restrict movement, making it feel stress-free and comfortable to wear.

The breathability and quick drying properties are great and will help to keep you dry when active. This makes it versatile and useful for daily use, business use, and as sportswear. The fabric may not be to everyone's liking, though, as it feels a little rough and may feel itchy when first worn. Those with sensitive skin take note. 

The Seamless Inner by VII-ADONIS is a seamless undershirt perfect for those looking for a sleek design that will look clean when wearing a button-up shirt over it. 

It provides an excellent cooling sensation with a Q-max value of 0.258 W/cm2. It also has excellent deodorizing properties, and can be hung to dry indoors without having to worry about musty odors. The fine, smooth fabric was well-rated for its pleasant texture. 

However, many of our staff members said that it felt tight around the shoulders and arms, which led to a low rating in our ease of movement evaluation. The breathability and quick drying was not great, and the fabric tends to get damp easily, making it unsuitable for people who sweat a lot.

The Cool Magic Crew Neck T-Shirt by Gunze is a 100 percent cotton shirt and claims to be naturally cooling. This scored well in our deodorizing test as it did not retain any musty odors, making this suitable for those who are odor sensitive.

The fabric felt coarse but was highly breathable. Unfortunately, there was only a slight cooling sensation upon contact, and with a low Q-max value of 0.201 W/cm2, this is not the most cooling undershirt available.

The texture of the fabric felt a bit coarse and rough and is not the most comfortable as an inner layer. The fabric was also not very stretchy, and we felt slightly restrained when we tried raising our arms.

The B.V.D. 2 Piece Set Cooling Sensation V-Neck T-Shirt by Fujibo Holdings features a mesh fabric made of cotton yarn with a fluff finish. This comes in a set of two which makes it very cost-effective.

The fabric provides excellent breathability and can help to release heat and moisture, making it comfortable to wear. The deodorizing performance was good, but we found a slight bitter odor after our test, which may be bothersome to some.

The mesh fabric is rough to the touch and received a low rating in terms of comfort, as it may chafe sensitive skin. Also, with a Q-max value of 0.169 W/cm2, the shirt did not feel very cool to the touch.

The Ice Touch Quick Dry Underwear V-Neck Short-Sleeved Shirt by Mizuno comes with sweat pads at the armpits and helps to prevent sweat marks.

The breathability and quick drying performance was excellent. It dries easily when you sweat, making it easy to wear even for those who work outdoors. However, the fabric is rough and not very comfortable to the touch. The seams also feel slightly prickly, so this may not be suitable for people with sensitive skin.

The deodorizing properties were also fairly weak, as the material had a strange smell when dried improperly. With a low Q-max value of 0.161W/cm2, this undershirt will not provide much in terms of a cooling sensation.