Preppy Button-up Shirt and White Jeans Outfit This outfit formula is one of my spring and summer go-tos. It’s lightweight and airy but still provides sun protection. It also looks preppy and polished for a casual sneakers outfit. I’m wearing this Patch Look Long Sleeve Button Down Shirt (sizes 12/14-32/34; $79.95) in the size 16/18. It has minimal stretch and runs snug through the arms, so you may want to size up if between sizes. This is the type of shirt I’d pack along on spring break or summer vacation to wear out sightseeing or to lunch. Use code LIZULLA to get this top for just $52. I styled it with these Claire 7/8 jeans with comfortable stretch material and raw-cut hems (sizes 12-30; $59.95) in the size 20. I now wear an 18 in Ulla Popken jeans, but I like to size up in white styles to avoid a skin-tight fit that shows every lump and bump. These jeans have moderate stretch and a medium rise. I love the 7/8 length with the raw hem for a current look that’ll show of your sneakers or sandals. Use code LIZULLA to get these jeans for just $39! LTKPlusSize LTKFindsUnder100 LTKMidsize