The long, hot days of summer are coming! To make sure your favorite heat-sensitive products make it to your doorstep in perfect condition during the warmer weather months, they will require a special eco-friendly cooler carton made from post-recycled content. We call this our U.S. Summer Cooler Program and it starts May 1, 2018.

When the U.S. Summer Cooler Program is in effect in your area, any orders that include one of the below heat-sensitive products will incur an additional $6 fee for every two units (example: two boxes of Chocolate Cream Crisp IsaLean™ Bars or a box of IsaLean Bars and a box of IsaDelight® chocolates) to cover the cost of the special, eco-friendly cooler.

Heat-Sensitive Products

To avoid incurring the cooler charge, try substituting with these tasty meal replacement options: Nutty Caramel Cashew, Chocolate Decadence, or Lemon Passion Crunch IsaLean Bars. For snacks, try Peanut Chocolate Chew or Honey Almond Crisp Fiber Snacks™, or Whey Thins™ in White Cheddar, Barbecue, or Sour Cream & Chive flavors.

State–by-State Start Date


May 1, 2018 – Oct. 19, 2018

Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, parts of Texas, Utah, Washington, and Wyoming.

May 15, 2018 – Sept. 21, 2018

Alabama, Arkansas, parts of Florida, Georgia, parts of Kansas, Louisiana, Mississippi, parts of Missouri, North Carolina, Oklahoma, South Carolina, Tennessee, and parts of Texas.

May 29, 2018 – Sept. 7, 2018

Parts of Florida, Illinois, Indiana, Kansas, Kentucky, parts of Missouri, Ohio and Tennessee, Nebraska, North Dakota, South Dakota, Virginia, and West Virginia.

June 4, 2018 – Aug. 24, 2018

Michigan, Minnesota, Wisconsin, and parts of Illinois, Indiana, Iowa, and Ohio.

June 12, 2018 – Aug. 24, 2018

Connecticut, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Vermont, and Washington D.C.

*Exact dates vary by region and are subject to change based on weather patterns.