Choose the specific WW1 army and role you want to portray
Get a period-accurate tunic or service jacket in the correct color
Wear matching wool or cotton trousers
Add puttees, gaiters, or leggings as appropriate
Use a correct shirt and undershirt underneath
Wear the proper boots or lace-up field shoes
Add the correct belt, cartridge pouches, and suspenders
Include a period-accurate cap, helmet, or hat
Add insignia, rank badges, and unit patches for the chosen army
Carry a replica canteen, mess tin, or haversack if needed
Add a replica rifle sling, bayonet frog, or other approved prop gear
Use weathered fabrics and muted colors for a realistic look
Keep the silhouette and accessories consistent with the chosen nation and year
Avoid modern zippers, logos, and synthetic-looking materials
Check reference photos from the exact WW1 army and time period
Fit the outfit properly so it looks authentic and wearable
Test the full costume with all gear before the event