Translation guide
A tracksuit is a casual two-piece outfit consisting of a zip-up jacket and matching pants, often worn for sports, lounging, or street fashion. In Japanese, the most common term is ジャージ, but other words exist depending on context and style.
The most common way to refer to a tracksuit in everyday Japanese, covering both athletic and casual wear.
The standard loanword for 'tracksuit' or 'jersey'. Used for both sports uniforms and casual loungewear. Often implies a matching set.
I spent the day in a tracksuit.
We wear tracksuits for PE class.
Refers to a sweatshirt or sweatpants set, often made of thicker cotton material. More associated with casual wear than sports.
A sweatsuit is the most comfortable for lounging at home.
From 'sweatsuit'. Often used for fashion-oriented tracksuits or matching sweatshirt/pants sets, especially in streetwear contexts.
I want a tracksuit from that brand.
Specifically for tracksuits worn as part of a school or team uniform, often with a top and bottom in school colors.
Literally 'gymnastics wear'. The standard term for the tracksuit or gym uniform worn at Japanese schools. Often a specific set with the school emblem.
I forgot my gym clothes, so I'll just watch.
Also used for school tracksuits, but 体操着 is more specific to the school context. ジャージ can be ambiguous.
I ran in my school tracksuit.
A tracksuit specifically designed for warming up before athletic events, often with a shiny or windbreaker material.
Often used for a lightweight, wind-resistant tracksuit top and bottom set worn by athletes. Can refer to just the jacket as well.
The athletes entered wearing tracksuits.
Still common, but ウインドブレーカー emphasizes the material and function.
Before the game, we warm up in tracksuits.
ジャージ is the most general and can be used for both sports and casual wear. トレーナー implies a thicker, cotton sweatshirt/pants set, often for lounging. スウェット is more fashion-oriented and common in streetwear. For school uniforms, 体操着 is the standard term.
club activity tracksuit
stylish tracksuit
The direct loanword トラックスーツ exists but is rarely used in natural Japanese. Stick with ジャージ or other terms above.