Original sentence: Many Westerners confuse the Japanese bloomer with underwear since the Western design is almost the same as Japanese, but a Japanese bloomer is worn over underpanty, a bit thicker, comes in bold colors
Edited sentence: Many Westerners confuse the Japanese bloomer with underwear since the Western design is almost the same as Japanese, but a Japanese bloomer is worn over a panty, is a bit thicker, and comes in bold colors