The Thunder players picked are Superleague youngsters Amy Clinton, Rebecca Hoult, Gabriella Marshall and NPL players Amy Carter, Iona Darroch and Lucy Stevenson.
Tamsin Greenway will head out on her first tour as head coach to the southern hemisphere, where England will play Australia and New Zealand. A separate squad will fly to the Caribbean simultaneously to face Jamaica in Kingston. They will be coached by Jan Crabtree and Thunder assistant Karen Greig.
Australia tour squad (4-15 August)
Imogen Allison, Rebekah Airey, Summer Artman, Brittany Coleman, Rhea Dixon, George Fisher, Brie Grierson, Emily Hollingworth, Gabriella Marshall, Vicki Oyesola, Razia Quashie, Paige Reed, Jess Shaw, Francesca Williams
Reserves: Amy Clinton, Claudia Heath, Rebecca Hoult, Alana John
Jamaica tour squad (5-15 August)
Halimat Adio, Amy Carter, Amy Clinton, Charlotte Curtis, Iona Darroch, Ashleigh Dekker, Zara Everitt, Rosie Harris, Claudia Heath, Rebecca Hoult, Alana John, Lucy Parize, Jaydene Robinson, Lucy Stevenson
Reserves: Sophie Drakeford-Lewis, Hannah Gorman
U21 Long Squad
Further to the tour selections, the following two athletes have been selected into the U21 Long Squad and will begin preparations with the rest of the squad ahead of the World Youth Cup in Botswana in 2017: Rosie Harris, Zara Everitt