The KLMK — Kamuflirovannyy Letniy Maskirovochnyy Kombinezon, or Camouflaged Summer Disguise Coverall — names a garment form, not a pattern. The stair-step birch design it became synonymous with entered service in 1968 and was produced across multiple Soviet factories with no strict color standardization. Dye lots varied significantly between runs: the yellow-sand colorways documented in field examples reflect genuine manufacturing variation, not a separate pattern. This colorway — a warmer, more saturated ground than the standard green-and-white — is associated with KGB Border Guard spetsodezhda issued from 1981, and with successor state forces that continued production into the 21st century.