Sub.

sword knot; sword-belt; baldric; baudric (Anglophile); swordbelt; belt; shoulder-straps (Technical); girdle belt; sword hanger; harness (a set of straps (= long narrow pieces of a strong material) for fastening something to a person's body or to keep them from moving off or falling

waist-belt (брит.; см. статью Портупея в Википедии); waist belt (амер.; см. статью)

shoulder harness (для скрытого ношения оружия и т. п. Vadim Rouminsky); shoulder rig (для скрытого ношения оружия и т. п. Vadim Rouminsky)

officer's swordknot (dzenkor); waist belt; shoulder belt; cross belt (1. a belt passing obliquely across the breast. 2. a belt worn over both shoulders, and crossing in front of the breast.

Sam Browne belt (MashBash); Sam Brown belt (MichaelBurov)

harness (Sumin)

sword belt (сабельная); sword hanger (сабельная)

патронная портупея Sub.