When riding a motorcycle by wearing a normal rain suit, rain may come in from the joint eye of the chest when it gets heavy, so as to prevent the rain from directly hitting the chest of the front closed up . I bought a 5L size because it overlies 4L size rain suit, but this product is too small around the waist! Pitchchipichi Yan! It is! It was nice to have another product as insurance. Although the dough has some water repellency, the force to play water is weak and there is no water shielding so it can not be used alone as a rainwater. Because water always seeps in, it comes only as an aid, but why is the waterproof Yakke behind? I can not help it because the large size is small.