(TrendHunter.com) Nike is set to elevate summer footwear with the upcoming release of the Calm Flip Flops, following the earlier debut of the Calm Slides. Anticipated for an official launch in the coming months, this…(TrendHunter.com) Nike is set to elevate summer footwear with the upcoming release of the Calm Flip Flops, following the earlier debut of the Calm Slides. Anticipated for an official launch in the coming months, this…