US: 42-44 to United Kingdom Size 32
Cross-market men’s sleepwear conversion mapping 42-44 specifications into 32 for lounge pants, pajama sets, and robes.

Analyzing Sleepwear Size Equivalence Across Markets
US: 42-44: Corresponds to a relaxed chest range of 106–110 (41.7–43.3 ), elastic waist range of 92–98 (36.2–38.6 ), and fit classification Relaxed / Comfort Fit.
United Kingdom Size 32: Corresponds to a relaxed chest range of 82–86 (32.3–33.9 ), elastic waist range of 68–72 (26.8–28.3 ), and fit classification Relaxed / Comfort Fit.