noun
neck cooler
A wearable device worn around the neck that cools the user, often using a fan or cooling plate. Common in hot weather.
夏の屋外作業にはネッククーラーが欠かせない。
A neck cooler is essential for outdoor work in summer.
新しいネッククーラーを買ったら、首元がひんやりして快
I bought a new neck cooler, and it feels pleasantly cool around my neck.