Short answer: there is no single size chart for fake Miu Miu bags. Replica makers copy the real lineup model by model, so "mini" on a Wander is not the same box as "mini" on an Arcadie or a matelassé shoulder bag. Most replica runs stop at small or medium, a few factories do a large tote, and the size word on a listing is only as trustworthy as the tape measure behind it. Ask for width, height, depth and strap drop in centimeters before you pay, then compare those numbers to the bag you already own.
Why the size labels don't line up across models
Miu Miu names sizes per style, not across the brand. A Wander mini is a rounded little shoulder bag built around a phone and a card case. An Arcadie in the same "mini" slot is a more structured shape with a flat base, so it holds a similar amount in a different footprint. When a replica listing says "medium," it usually means "middle of whatever range this factory runs," which could be 27 cm wide or 32 cm wide. I treat the word as a category, never as a measurement.
Typical dimensions by size tier
These ranges cover most replica Miu Miu styles I see quoted, but treat them as a starting point for a conversation with the seller, not gospel.
- Mini: roughly 17 to 21 cm wide, 10 to 13 cm high, 6 to 8 cm deep. Chain or thin leather strap.
- Small: roughly 21 to 26 cm wide, 13 to 17 cm high, 7 to 10 cm deep. The most common replica size by a wide margin.
- Medium: roughly 27 to 32 cm wide, 18 to 22 cm high, 10 to 13 cm deep. Often the largest size a factory will produce.
- Large or tote: 33 to 40 cm wide. Rare in replica runs, and the tier where proportion errors show up most.
What actually fits inside
Interior volume matters more than the outside number, especially on quilted styles. Matelassé padding and a stiff lining can eat 1 to 2 cm of usable space on every wall.
- Mini: a 6.1 inch phone, cardholder, keys, lipstick, folded cash. Nothing more.
- Small: the same plus a compact wallet, a small pouch, and sunglasses without a hard case.
- Medium: adds a sunglasses case, a folded scarf, and a slim water bottle if the base is flat.
- Large: a 13 inch laptop will fit in some totes, but check the interior width, not the exterior.
Strap drop changes how big the bag feels
A 20 cm bag on a 55 cm chain reads as a small shoulder bag. The same bag on a 110 cm adjustable strap reads as a crossbody and sits closer to the hip, which makes it feel bigger when you wear it. Ask for drop measured from the top of the strap to the top of the bag. Mini chains typically land near 50 to 55 cm, adjustable crossbody straps near 55 to 60 cm at the shortest setting, and top handles near 8 to 12 cm.
How to check numbers with a seller
I ask for a photo of the bag flat on a table with a rigid tape measure along the base, plus the same shot for height and strap drop. Factory spec sheets get copied between listings, so a photo of the actual unit is the only proof. If the seller quotes inches, convert both ways and check the math, because rounding is where "medium" quietly becomes "small." Also ask whether the measurement includes the hardware, since a front clasp can add 1 to 2 cm to the height.
Size red flags worth walking away from
A listing that gives one set of dimensions for four different silhouettes is a copy paste job. So is a "mini" quoted at 28 cm wide, or a medium tote with a strap drop of 20 cm described as crossbody. Proportion is the tell: a Wander style should look almost round, and an Arcadie should have a wider base than top. If the photos show a shape that doesn't match the numbers, trust the photos and move on.
Match the size to how you carry it
If you carry a phone, cards and keys, mini is enough and it wears better with a coat. If you want one bag for a full day out, small is the safe pick and the tier with the most accurate replica options. Medium only makes sense if you genuinely carry a pouch and sunglasses case, because an overstuffed structured bag distorts at the corners and that is where cheap construction shows first.