Historical clue formulations

• Certain slip-on — 2026-02-21
• Garment that's pulled over the head — 2022-11-25
• Wet weather wear — 2020-07-12
• Bad-weather gear — 2017-11-09
• Something to put on before a shower — 2015-03-18
• Pullover raincoat — 2004-06-14
• Wet-weather gear — 2001-04-15
• Sombrero accompanier — 1999-04-13
• Blanket wrap — 1998-09-15