Since we are springing forward this weekend... if I may follow up with the OT earlier of oversized white cotton poplin shirts!

My top picks for this spring/summer...
The Nili Lotan is super clean, no placket. The fabric is thinner than the Frame shirt, but it's still great; it's just different. It is very crisp and summery.. roll up the sleeves, and you're ready for spring/summer:
White Kristen cotton-poplin shirt | NILI LOTAN | NET-A-PORTER
The Frame shirt is the bomb for me. The fabric is a quality crispy cotton poplin. It is cut a tiny bit wider than the Nili Lotan, but since the fit is oversized, it's not a big deal. This shirt seems to get sold out fast on NetAPorter, so I went directly to Frame. The customer service rep said the smaller sizes in white are constantly sold out, but she told me to select my size, then click on "Notify Me" to get an email when my size is back in stock. I did the "Notify Me" and poof... a few weeks later I got notified the XS was available. Love this shirt! I also bought the blue oxford. I was hesitant that oxford really meant a "cotton oxford" fabric, but it is not. It is still the nice and sleek cotton poplin! Yippee! For me, it has been very hard to find an oversized, pale blue, cotton poplin shirt, so if you're looking for one, try this. The green and orange are new... This Orange is not for me, so I sent it back. Grass Green just came out this week, and it looks so fresh for summer. I ordered it and am waiting for it to arrive (BG also has it available for pre-order). You have probably figured out how I shop.

I'm a simple shopper... if I like a piece, I buy all the colors. I am hoping for a super pale blush pink.
The Oversized Shirt Blanc – FRAME (frame-store.com)
Hope this was helpful to anyone looking for oversized cotton poplin shirts for this spring/summer season.
Note this is really oversized, not regular or fitted, which there are tons of brands that cover those fits.