Pulling off easy summer style can be more difficult than it looks. But using Kourtney Kardashian and Jessica Alba as inspiration, Us Weekly has easy tips to make warm weather fashion a breeze.

Using Kardashian's staple printed romper, add a bright envelope clutch or other colorful handbag to stay on trend. Dress up the look for date night by adding a statement necklace and a pair of heels.

Alba—frequently spotted during the summer at local parks with daughters Honor and Haven, and hitting the town with husband Cash Warren—perfects the casual California look with wardrobe staples like a little white dress. Add a personal touch—and sparkle—with an embellished statement necklace.

"A little white dress is great because it can be casual for day or at night you can dress it up to be as fancy as you want to," explains Us Weekly editor Travis Cronin, who hand-picked a selection of on-trend summer staples that can be accessorized and enhanced using pieces already in your closet.

PHOTOS: Celebrity street style

For more on celeb-inspired summer wardrobe pieces and how to make them your own, watch Us Weekly's Style 101 video now!