Reference article
Soldier Hat
Soldier Hat is an appearance option in the Swamp shop.
Obtaining it
Buy it from the 
Swamp shop with 
Coins.
Use
Assign it to a duck to change its appearance. Appearance items do not improve racing skills.
Duck preview
Reference article
Soldier Hat is an appearance option in the Swamp shop.
Buy it from the Swamp shop with Coins.
Assign it to a duck to change its appearance. Appearance items do not improve racing skills.