Yes you can wear a three piece suit. Start with this slim fit vest, crafted from a wool blend. Not ready to take the plunge? Wear over a t-shirt and jeans for a casual, tailored take. rag & bone Women's Slim Fit Vest | Salute Stripe, 00 (also in 6). Fitted V-neck Vest For Office, Elegant Wool Vest For Office, Classic V-neck Office Vest, Elegant Slim Fit Vest For Spring, Fitted V-neck Blazer For Office Wear, Summer V-neck Fitted Blazer, Elegant V-neck Vest For Office Wear, Tailored Classic V-neck Tops, Classic Tailored V-neck Tops