Supplied with inferior horses and more basic equipment, the dragoon regiments were cheaper to recruit and maintain than the expensive regiments of cavalry. When in the 17th century Gustav II Adolf introduced dragoons into the Swedish Army, he provided them with a sabre, an axe and a matchlock musket, utilizing them as "labourers on horseback". Many of the European armies henceforth imitated this all-purpose set of weaponry. Dragoons of the late 17th and early 18th centuries retained strong links with infantry in appearance and equipment, differing mainly in the substitution of riding boots for shoes and the adoption of caps instead of broad-brimmed hats to enable muskets to be worn slung.