Yes! I do combine shipping :) 
Part Number: 48431pb06
Original Authentic NEW LEGO Minifigure Armor Pauldron Cloth with Black Neck and 4 Thin Gray Stripes Pattern, Thin Border, Orange 
New Unused. Uninstalled
1 (one) cloth part only
For:
Sandtrooper Squad Leader (Captain) - Orange Pauldron, Ammo Pouch, Dirt Stains, Survival Backpack
Sandtrooper Squad Leader/Captain - Orange Pauldron, Ammo Pouch, Dirt Stains, Survival Backpack (Dual Molded Helmet)
Sandtrooper Squad Leader/Captain - Orange Pauldron, Ammo Pouch, Dirt Stains, Survival Backpack, Frown (Dual Molded Helmet)

From Sets: 
75221-1 Imperial Landing Craft 2018
75228-1 Escape Pod vs. Dewback Microfighters 2019
75290-1 Mos Eisley Cantina 2020

Will fit others as well :)

Removed from original package & place into plastic baggie