Woot offers Amazon Essentials Women's Relaxed Fit Sleeveless V-Neck Woven Shirt for $3.46 free shipping with Prime. 

Product Description:
Amazon Essentials women’s top: Versatile: Perfect for the spring and summer seasons. It pairs seamlessly with pants, jeans, casual trousers, denim shorts, leggings, skirts and more. Occasions: Suitable for home, work, office, travel, vacation, party, weekend gathering or casual daily wear.

• RELAXED FIT: Relaxed, comfortable fit through the body
• DRAPEY FLUID TWILL: This soft and lightweight twill fabric offers a refined beautiful drape and all-day comfort
• SLEEVELESS WOVEN SHIRT: This versatile sleeveless shirt is a classic wardrobe essential, perfect for layering under your favorite jacket or cardigan, or on its own with a pair of jeans for easygoing everyday style
• DETAILS: Features a simple band collar, V-neck, easy popover closure, curved shirttail hem, sleeveless arm openings, and feminine gathering at the neck band creating a beautiful flowy drape and fit
• ADDITIONAL FABRIC & CARE INFORMATION: Due to the delicate nature of viscose fabric, we recommend you wash it in cold water and hang dry to prevent fabric shrinkage and wrinkles caused by any extra heat. Gently iron or steam for an even crisper, polished look
• LENGTH: 26 1/2" from side neck on US size S. Kindly check and measure with Size Chart before selecting size