It is mostly a Southern thing, but white shoes, pants, or even your straw boater should only be worn after Easter, and before Labor Day. I doubt anyone will throw down the gauntlet and demand satisfaction of their honor if you step out on a warm day before then in white, so feel free to act the Yankee
I happened to notice the other day that the Glenn hoodie from the F/W Shackleton collection is lined with the same green herringbone canvas used to make the officer chino's. It was one of the subtle surprises about the brand that is always enjoyable to discover.
I like the blue sweater with the cowl neck. It is one of my favorite pieces from the latest collection. There are some great details, including the white trim at the back of the neck. That being said, I typically prefer wool to cotton. I think the wool tends to keep its shape better. Is the second sweater in your post the naval one with the hood?