31st Engineer Battalion — "We Demonstrate"

Built for those who understand that service leaves a mark — on the land, on history, and on the people who carry it forward. The 31st Engineer Battalion has been shaping the battlefield since 1940, activated at Fort Belvoir, Virginia and forged through the crucible of WWII into one of the Army’s most storied combat engineering units at Ft. Leonard Wood, Missouri.

This crewneck carries that legacy.

Constructed from a 50/50 cotton-polyester blend with pill-resistant air jet yarn, it’s built to hold its shape and its story — wash after wash, year after year. Double-needle stitching throughout, set-in sleeves, and a 1x1 ribbed collar, cuffs, and waistband with spandex give it a structured, clean silhouette that honors the precision of the unit it represents.

Wear the history. Honor the mission.

• 50% cotton / 50% polyester — pill-resistant air jet yarn
• Double-needle stitching throughout for lasting durability
• Set-in sleeves for a clean, structured fit
• 1x1 ribbed collar, cuffs & waistband with spandex
• Available in Black, Navy & White — sizes S through 2XL

Unit History

The 31st Engineer Battalion was originally constituted as the 31st Engineer Company on 1 July, 1940 and activated at Fort Belvoir, Virginia. The unit was reorganized, expanded and redesignated on 15 December, 1941 as the 31st Engineer Combat Battalion. On 29 April 1942 the unit was reorganized and redesignated as the 1st Battalion, 31st Engineers (Combat), and then again on 1 August 1942 as the 31st Engineer Combat Regiment.