Thank you for viewing. Women's Long Sleeve High Neck Top - Size L Solid black, so I think it can be used in any situation, from casual to formal. Simple high neck, I think you can use it for a long period of time, spring, autumn and winter. It is also recommended to wear it tucked into skirts, pants, or all-in-ones. Recommended for those who like clothes from ONWARD, world, grove, index, any SIS, any FAM, Kumikyoku, 23区, Jiyuku, BEIGE,, Tiaclasse, ZARA, GRL, fifth, coca, H&M, GU, UNIQLO, titivate, Yours, earth, Urban Research, LagunaMoon, Rope Picnic, aquagirl, Green Label, Natural Beauty Basic, Vis, INGNI, Snidel, Global Work, etc. Will be sent in simple packaging. Please understand that this is a home-stored item. Pattern/Design... Solid Color... Black Sleeve Length... Long Sleeve Season... Spring, Summer, Autumn, Winter