side bag

plural side bags

1. Any bag carried on one's side.

   He lifted his sidebag off one tumbril, swung it over the sails of Beatrice, and walked down the gulley, followed by Sheba, Toby and Phillip.

   2011, Henry Williamson, Lucifer Before Sunrise, Faber & Faber, →ISBN

   3 more examples

   The new, red strap holding Edith's sidebag had loosened and burnt-through too. Miraculously, the bag had stayed with the bike without any back-up strap.

   2015, Ray Simm, Wobbles, Lulu.com, →ISBN, page 75

   Figulus reached a hand into his sidebag and quickly produced the waxed tablet containing the authorisation one of the legate's clerks had drawn up the previous evening at the marching camp on Vectis.

   2016, Simon Scarrow, T. J. Andrews, Invader, Headline, →ISBN

   Enter: the summer side bag, the carryall your street-style-savvy celebrities, including Kaia Gerber, Rita Ora and now Kylie Jenner, have been wearing lately.

   2018 June 13, Diana Nguyen, “Kylie Jenner Sports the New Fanny Pack A.K.A. Summer Side Bag”, in E! Online