[7][8] Musically, "Skinny Dipping" is a two minutes and fifty-eight seconds acoustic guitar-driven midtempo pop song.

[9] In terms of music notation, "Skinny Dipping" was composed using 44 common time in the key of E major, with a moderate tempo of 92 beats per minute.

[12] The letters put in the box allude to the emails Carpenter wrote for herself, from which the inspiration for the songs on her album came.

[13] On October 29, 2021, Carpenter performed the song on The Tonight Show Starring Jimmy Fallon[14] wearing a black and white gingham sequin dress, playing a Nord Electro 6D, and surrounded by band.

[15] Recording and management Personnel Credits adapted from Emails I Can't Send liner notes.