Co-produced by Vampire Weekend alum Rostam, the album's velvety textures sound constructed rather than preprogrammed, and guest Danielle Haim plays live drums on several tracks. The record's closer even features a children's chorus. It remains a distinctly intimate affair, however, as established on opener "Alewife." Ethereal, choral-like synths and a sentimental piano chord progression set the tone before a pit-a-pat drum rhythm accompanies Clairo as she recounts a night in her early teens when a friend stopped her from attempting suicide. A song concerned with gratitude more than brooding, its pillow-soft vocal delivery translates to tracks throughout the album, even the alt-'90s-inspired "Bags" and low-key dance-rock of "Sofia." On the latter song, she ventures into melisma, while the spacious ballad "Closer to You" experiments with the Auto-Tune and the muffled drums of slow-jam territory. Acknowledging these stylistic variances and subtle production touches, Immunity is nothing if not consistent in providing Clairo's confessional lyrics and seemingly thematically detached vocals with a cushiony-soft landing. What she loses here in charm, she makes up for in lyrical depth and an enveloping sense of comfort, if drowsy melodies tend to waft by rather than stick around.
- Marcy Donelson - allmusic.com
