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Large towel with fasteners = 980 yen ($7.97 €7.21)

My son bought a large towel with fasteners for 980 yen ($7.97 €7.21). He brings it to the school and uses it for school swimming lessons. When the students are changing their clothes, they wear towels to hide their lower bodies. 

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I do not think it is necessary to hide the lower body. Actually I do not, in a locker room. Maybe it is a kind of teenagers fashion.  

Table of Contents of Statistics/Rankings/Graphs is here.