US: 50-52 to United Kingdom Size 50-52
Cross-market men’s sleepwear conversion mapping 50-52 specifications into 50-52 for lounge pants, pajama sets, and robes.

Analyzing Sleepwear Size Equivalence Across Markets
US: 50-52: Corresponds to a relaxed chest range of 122–126 (48–49.6 ), elastic waist range of 108–114 (42.5–44.9 ), and fit classification Loose Lounge Fit.
United Kingdom Size 50-52: Corresponds to a relaxed chest range of 122–126 (48–49.6 ), elastic waist range of 108–114 (42.5–44.9 ), and fit classification Loose Lounge Fit.