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House Of Jan
Size Finder

Find Your Perfect Fit

Grab a shirt you already own that fits you exactly how you like. Measure it and enter the numbers below — we'll match you to one-of-one pieces with similar measurements.

Your Reference Shirt

Measure a shirt you own that fits you perfectly — not your body. We compare it to the exact measurements listed for each piece.

Lay the shirt flat, measure straight across from armpit seam to armpit seam.

From the highest point of the shoulder straight down to the bottom hem.

These matches are a guide, not a guarantee of fit. Every piece is one-of-one, so always read the exact garment measurements in each item's description before buying.

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Enter your shirt's measurements

We'll instantly surface the pieces with measurements closest to the shirt you love.