Wear a crew-neck t-shirt with grey chinos for a hassle-free getup that's also put together. Kick up your outfit by rocking black flip flops.
Black Flip Flops with Crew-neck T-shirt Casual Warm Weather Outfits For Men
For something on the classic and casual end, wear this combination of a crew-neck t-shirt and a white and black houndstooth double breasted blazer. Add a pair of black flip flops to the mix to keep the look fresh.