![Grey Crew-neck T-shirt with Short Sleeve Shirt Casual Warm Weather Outfits For Men In Their 30s: This pairing of a short sleeve shirt and a grey crew-neck t-shirt is an excellent idea for when it's time to go off-duty. Navy and white canvas high top sneakers are guaranteed to give a touch of stylish effortlessness to your outfit. Now that's how you keep it casual in the fashion department as a 30-something Millennial man.](https://cdn.lookastic.com/looks/harrington-jacket-short-sleeve-shirt-crew-neck-t-shirt-large-49325.jpg)
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This pairing of a short sleeve shirt and a grey crew-neck t-shirt is an excellent idea for when it's time to go off-duty. Navy and white canvas high top sneakers are guaranteed to give a touch of stylish effortlessness to your outfit. Now that's how you keep it casual in the fashion department as a 30-something Millennial man.