Roman Soldiers Clothing

Colors

The basic clothing including the tunic or cloaks of the Roman soldier was either red (dyed with madder) or undyed material giving an off-white color.

Loincloth

The loincloth was a basic item of clothing described as a one-piece male garment made of wool or linen.
http://www.ancientcraft.co.uk/Projects/caveman_clothes/caveman_clothes.html

Socks

The socks (udones) were quite common apparel (made sense with the marching requirements of Roman Soldiers). Full coverings or socks without a toe or heel were also worn.
http://www.medievaldesign.com/prodotti.asp?form_chiave=20
http://www.medievaldesign.com/eng-prodotti-uomo.asp?form_chiave=33

Leg Wrappings or Bindings (puttees)

Leg wrappings or leg bindings (puttees) were strips of material wrapped from the ankle up to the calf of the leg.
http://www.ebay.co.uk/bhp/roman-military

Trousers (Braccae)

Braccae is the Latin term for trousers, a style of pants, made from wool, which became popular with soldiers in the colder climates of the Empire. Braccae were fastened with a drawstring and were of varying lengths from just above the knee or to the ankles.

Military Tunic (Tunica)

The Military Tunic (Tunica) was a wide, shirt-like, undergarment made made of a long piece of rectangular cloth, made of wool, cotton or linen depending on the climate. It was originally sleeveless and usually white. The tunic later acquired sleeves. The tunic was girded with great care to the exact length considered correct for the rank of the wearer.

Military belt (Cingulum militare) 

The Military belt (cingulum militare) was wore around the waist of the soldier and acted as a holder for his dagger and the apron that hung from the front portion of the belt.

http://www.murphsplace.com/gladiator/legions.html

Cloaks (Sagum)

The sagum was the woollen cloak worn by the Roman soldiers and inferior officers, open in the front and usually fastened across the shoulders by a clasp. Another style of cloak was the paenula, a poncho style cape with a central hole for the head.

Scarf (focale)

The Scarf (focale) was a useful addition to the clothing worn and could be wrapped around the neck to prevent chaffing woolen scarves could be wrapped around the body for extra warmth.

http://lt.wikipedia.org/wiki/Fokal%C4%97
http://www.tribunesandtriumphs.org/roman-clothing/roman-soldiers-clothing.htm