请问买过这件Sandro wool coat号码正常吗？

有没有买过这件Sandro wool coat的姐妹， 请问号码正常吗？我穿xs, 感觉要买Xs, 因为是oversized.
https://www.nordstrom.com/s/ethan-wool-blend-blazer-women/7173588?color=BEIGE&utm_content=1260040487778096&utm_term=pla-4582352149379363:aud-805874587&utm_channel=low_nd_shopping_standard&adpos=&creative=&device=c&matchtype=e&network=o&acctid=21700000001689570&dskeywordid=92700049876781453&lid=92700049876781453&ds_s_kwgid=58700005469629646&ds_s_inventory_feed_id=97700000007631122&ds_a_cid=593274227&ds_a_caid=11578124841&ds_a_agid=112254654425&ds_a_lid=pla-1014851611615&dsproductgroupid=4582352149379363&product_id=5626099&merchid=452&prodctry=US&prodlang=en&channel=Online&storeid=&locationid=&targetid=pla-4582352149379363:aud-805874587&campaignid=291444851&adgroupid=1260040487778096&msclkid=ecca7f4c822413b25fb81c9fbc6bc217&utm_source=bing&utm_medium=cpc&utm_campaign=Woman%20-%20Supplier%20-%20Outerwear_low_nd_shopping_standard_FY2020_Nordstrom_2836_US&gclid=ecca7f4c822413b25fb81c9fbc6bc217&gclsrc=3p.ds