Here's the best zip file we've seen in years -- thanks to Halsey's bikini.
The singer rocked this awesome zippered 2-piece while relaxing with friends in Tulum, Mexico ... off the Caribbean coastline.
Besides the insane physique and the cool fashion, check out the water in the pics -- crystal clear in front of a jungle background with some cliffs that you KNOW you gotta jump off of.
Fun Fact: Pablo Escobar famously owned a sick beach estate in Tulum ... but he won't look nearly as good in a bikini!
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