These are just some bags I have and or thought was cute that will work in the summer to keep things cool and will stay dry!
Expensive but works well
Camino® 35 Carryall Tote Bag
Medium sized bag that is water proof and insulated
ALOHA Collection
$225 | If you want a cute and trendy cooler tote, this one would do the trick. And it is completely made of recycled plastic.
Coachtopia | Loop Quilted Wavy Tote
$20 | Completely water proof and the top rolls down to be whatever size you want the bag to be. Used often by campers.
Earth Park | Original Waterproof Dry Bag (10L/20L)
$68 | They say on the website that the fabric is water repellent and comes in a variety of colors.
Lululemon |Daily Multi-Pocket Tote Bag 20L
$72 | very cute and water repellent beach bag. Also has rave reviews online for its durability.
ALOHA | Day Tripper | Riviera
$50 | So cute and reversible bag. You can also purchase additional mini bags (like for your make-up) that have the same patterns.
ALOHA | Reversible Tote | Limoncello
$72 | Take your look from beach to street with a classic! Elevate your style with sleek monochrome silhouettes in timeless hues.
ALOHA | Day Tripper | Monochrome
$80 | Spacious Bag Easily Carries All Your Essentials Water-Resistant Touchscreen Pouch Fits All Phones Includes Key Leash for Touchscreen Pouch Water-Resistant Materials Repel Sand and Water Designed For Sandy, Sunny Days! 1 Year Warranty
Case Mate | Soap Bubble Beach Tote with Phone Pouch
$17 | Travel Essentials for Beach Vacation - It is an extra-large beach bag that holds everything you & your family need. You will love the waterproof material, which will keep you away from many troubles.
Large Waterproof Beach Tote Bag with Zipper Beach
$150 | Super cute and trendy insulated bag. you could fit personal items and whatever you want to eat or drink.
YETI Camino 35 Carryall Tote Bag
$35 | Super cute hobo tote that is water resistant and comes in a variety of vibrant colors.
Compakt Tote Bag | CALPAK
$40 | Not a super well known brand but I am in love with the way this bag looks. And of course it is water resistant.
All Day Beach Tote Beach Bag | Dried Mango
$40 | Another really cute bag from this brand. Also great for the beach.
So Essential Tote Bag - Black Pebble
$72 | I just love this brand so much because it is the perfect beach bag and you can get reversible bags if you get tired of one pattern.