Hear me out bc I hear you with not wanting to drap a shirt over baby but — these are light and breathable, shorter in front for easy lifting, and just so cute especially for the price. I wear them with Auden nursing camis - easy snap, thicker material - underneath (& currently on sale Target online!)
Caracilia Women Turtlenck Dolman Sleeve High Low Asymmetric Hem Waffle Knit Casual Loose Oversized Tunic Sweater Tops C8A3-xing-S Beige https://www.amazon.com/dp/B0814P71HR/ref=cm_sw_r_cp_api_i_pR-2Db9070MBW