SizeMemo
Measurement-based fit demonstration

Watch a size get calculated.

Every garment, shopper and return below is fictional, from an imaginary label called Maison Halden. The calculation is the real SizeMemo engine, running in your browser.

1 · Choose a fictional garment
2 · Shopper measurements
Fit preference

Measurements are typed in, never estimated from a photo.

Suggested size · Arden Poplin Shirt
L
High confidence

Size L gives the closest match to your measurements and fit preference: chest +10.5 cm (within the target 9 to 15 cm); waist +16 cm (within the target 10 to 18 cm); sleeve +2 cm (within the target -1 to 2.5 cm). Confidence: high.

Explanation assembled directly from the calculation below. Every compared measurement falls inside the target range.

How size L was calculated

Point of measureGarmentYour measurementEaseTargetPositionResultWeightPenalty
Chest / bust110.5100+10.59 to 15
Within target×30
Waist10488+1610 to 18
Within target×10
Sleeve length6563+2-1 to 2.5
Within target×10

Every size, scored

Penalty = cm outside the target range × weight (snug is weighted ×1.5 because a garment that is too small can't be worn). Lowest penalty wins; near-ties follow your fit preference.

SizeChest / bustWaistSleeve lengthTotal penalty
XS -7.5 cm (74.25)-2 cm (18)-2 cm (1)93.25
S -2 cm (49.5)+4 cm (9)0 cm58.5
M +3.5 cm (24.75)+10 cm+1 cm24.75
L ★+10.5 cm+16 cm+2 cm0
XL runner-up+16 cm (3)+22 cm (4)+4 cm (1.5)8.5
Limitations of this recommendation
  • Recommendations compare published garment measurements with the measurements you provide. They do not measure your body.
  • Self-measurement error of 1–2 cm is common and can change the result near a size boundary.
  • Fabric drape, stretch recovery, posture and personal taste are not fully captured by measurements.
  • Garment measurements carry manufacturing tolerances, typically ±1–2 cm per point of measure.
Arden Poplin Shirt — fictional measurement chart (cm)
Point of measureXSSMLXL
Chest / bust92.598103.5110.5116
Waist869298104110
Shoulder width4243.54546.548
Body length7072747678
Sleeve length6163646567
From returns to a sizing flag

How recurring feedback exposed the Linden shirt.

01

Read what customers wrote

Returns arrive as free text. Amazon Bedrock assigns each comment a fit category and the body area it mentions, with a confidence score. Uncertain ones go to a person.

“Fabric feels scratchy.”
Not fit-related · overall · size M
“Bit tight for me, exchanging for the next size.”
Too small · overall · size L
“Fits at the shoulders but way too snug across the chest.”
Too small · chest · size XL
“Chest too tight, the placket pulls open.”
Too small · chest · size L
“Buttons gape and pull across the chest. Runs small compared to my other shirts.”
Too small · chest · size L
“Tight across the chest, buttons pull when I sit down.”
Too small · chest · size L
02

Count the pattern

Counting is plain arithmetic, no AI. Of 31 fit-related comments, 29 say the shirt is too small, most often at the chest. Its return rate is 31%.

Too small 29 · Too large 2
03

Check the tape measure

Independently, Linden's chest is compared with the brand's regular shirt block (tolerance ±2 cm).

Chest / bustXSSMLXL
Block spec9298104110116
Linden91.59399.5105110.5
Deviation-0.5-5 ▲-4.5 ▲-5 ▲-5.5 ▲
04

Flag only when both agree

Chest / bust measures on average 5 cm smaller than the Shirting & tops — Regular block in sizes S, M, L, XL, and 94% of fit-related returns are classified "too small" (most often at the chest). Recommend checking a physical sample against spec.

It's a potential inconsistency: the next step is a person measuring a physical sample. Meanwhile, the recommendation engine already uses Linden's real measurements, so shoppers are steered to the right size.

Try it with your own range.

The full dashboard includes the measurement editor, size chart manager, feedback import and reports.

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