Giuliana Rancic says she and son Duke "had so much fun" collaborating on Abercrombie Kids' Everyday Collection, which is up now on
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Giuliana Rancic‘s 6½-year-old son Edward Duke is already building up an impressive résumé.

The kindergartner (who goes by Duke) and his E! host mom, 44, recently joined forces on a gender-neutral California-inspired clothing collection for Abercrombie Kids, fittingly dubbed the Everybody Collection.

“Duke loved the whole process,” Rancic tells PEOPLE for this week’s issue of teaming up with her son on the designs. “The clothes are all about being stylish, but they have to be functional and fun too. Kids want to be comfortable!”

In a cute promo snapshot, the mother of one posed with her son, who wore the new line’s colorful palm-tree-decorated Logo Hoodie ($40).

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A&F Kids Summer II LA_EBC_GD_PORTRAIT_2668_R_preview
Credit: Courtesy Ambercrombie Kids
Giuliana Rancic and family
| Credit: Giuliana Rancic/Instagram

Rancic was involved in the design steps from the get-go, but made sure to get Duke’s opinion on the items, which include flip sequin tops and graphic tees.

“I would ask him, ‘What do you think of this? Would you wear this? What color should it be?’ ” she recalls. “He got to collaborate.”

Duke also scored a trip to Abercrombie’s headquarters in New Albany, Ohio, where he experimented with screen printing.

Giuliana Rancic and son Duke
| Credit: Abercrombie

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And it sounds like this may not be the last partnership for the mother-son team, whose new designs are available to preview now on (With early purchase access for members!)

“Everything turned out so cute,” says Rancic of the line, which officially launches on Sunday, according to her Instagram account. “And we had so much fun doing it together!”

For more from Giuliana Rancic and son Duke, pick up the latest issue of PEOPLE, on newsstands Friday.