"Shelter" was first written back in 2016 by Finneas. He had heard that Swedish musician
Avicii was looking for songs to produce. Following on from this, Finneas wrote the track and sent it to Avicii's team. Finneas has confessed that he doesn't know if Avicii ever heard it. The track features a tropical beat, electric guitar,
Latin-based guitars, drum beats,
gospel choir effect[s] that appear during the
chorus,
reverb'd handclaps,
bluesy vocal embellishment, and rapid phrasing in the
bridge. Tosten Burks, writing for
Spin magazine, noted the track sounds like an
Ed Sheeran song. The mood of the track becomes more urgent as it continues: "Give me, give me shelter/From the storm/Give me, give me shelter/ Keep me warm/I don't wanna think about a life without you/I don't wanna go to war but I'm about to". ==Critical reception==