Creating a wearable suit of medieval armor, especially a full-body Crusader combat suit, is a specialized craft that requires expertise in metalworking, leatherworking, and historical design.

Seek out skilled blacksmiths or armorers who specialize in crafting medieval armor. They often take custom orders for suits of armor.

As for gifting a medieval knight armor suit to your boyfriend, ensure that he has an interest in medieval history, reenactments, or cosplay.