Choosing a Hermès Birkin starts with the size. The number in the name is the width of the bag in centimeters, and each size changes both the look and the way you will use it. Here is how they compare.
Birkin 25
The most coveted size today. Compact and elegant, it holds a phone, a wallet, keys, sunglasses and small essentials. It suits petite frames beautifully and works from day to evening. Its popularity means it is often the hardest size to find.
Birkin 30
The perfect balance for many collectors. It fits everything in the 25 plus a small tablet, a pouch or a scarf, without feeling oversized. If you want one Birkin for everyday life, the 30 is often the safest choice.
Birkin 35
The classic size from the original design era. It holds a small laptop, documents and a full day's essentials. It is a strong choice for work and travel, and it looks especially striking in grained leathers such as Togo and Clemence.
Birkin 40
The largest standard size, ideal as a weekend or travel bag and popular with men. It offers the most capacity but can feel heavy when fully packed.
Tips to choose
- Your height: smaller frames usually prefer the 25 or 30; taller frames can carry a 35 effortlessly.
- What you carry: list your daily essentials. If a laptop is on the list, look at the 35.
- The leather: soft leathers slouch more in larger sizes, while Epsom keeps a crisp shape.
- Resale: the 25 and 30 in neutral colors are generally the most sought after.
Find your Birkin
Browse our Hermès bags and read our Birkin vs Kelly guide. Each piece is inspected, graded for condition and backed by our authenticity guarantee.