CAnadian Disruptive PATtern (CADPAT), is the digital camouflage pattern currently used by the Canadian Forces (CF). It has similarities to German Army Flecktarn that may have inspired the development of CADPAT. The patent for CADPAT lists US Army research [1] done by LTC Timothy R. O’Neill (U.S. Army, Retired) in the 1970s as an early inspiration for their digital pattern. CADPAT went considerably beyond this initial research. CADPAT is a computer generated pattern incorporating sophisticated Near Infrared protection designed to conceal soldiers from image intensification devices (night vision). 
The basic uniform consists of a wide brim combat hat, helmet cover, shirt, jacket, fragmentation vest, and trousers.
Upon its introduction, the pattern was copyrighted.
In development for the better part of a decade, the pattern comes in three varieties: Temperate Woodland (TW), Arid Region (AR), and Winter/Arctic (WA). The temperate woodland pattern became the standard issue for the Army in 2002, with the Air Force following suit in 2004.
Uniforms and equipment in CADPAT material replaced the olive green material in use since the early 1960s.
Some civilian firms are licensed to sell clothing and accessories using CADPAT material (though not the same IR-defeating type used by the CF) as long as the patterns do not match official CF uniform and equipment patterns. These are commercially available from a wide variety of sources.
