Hermes Birkin Sizes: Complete Comparison
Updated 2/17/2026
Every Birkin Size at a Glance
Hermes produces the Birkin in five main sizes, each identified by its width in centimeters. The Birkin 25 (25 x 20 x 13cm) is the smallest and currently most coveted. The Birkin 30 (30 x 22 x 16cm) is the most versatile everyday size. The Birkin 35 (35 x 25 x 18cm) is the original size and best value. The Birkin 40 (40 x 30 x 21cm) is the travel and unisex option. The HAC 50 (Haut a Courroies, 50 x 40 x 24cm) is technically the Birkin's ancestor — a tall travel bag with a more vertical silhouette.
- Birkin 25: phone, compact wallet, keys, lipstick — the going-out Birkin
- Birkin 30: full wallet, phone, sunglasses, cosmetics, small notebook — the everyday Birkin
- Birkin 35: all of the above plus 13-inch laptop and water bottle — the work Birkin
- Birkin 40: everything plus a change of clothes — the travel Birkin
- HAC 50: a weekend's worth of clothing — the heritage travel piece
Size and Body Proportion
Your height matters more than you might expect. The 25 looks proportional on frames from 5'0" to 5'6". The 30 works well from 5'2" to 5'10" — the most universally flattering size. The 35 suits taller individuals (5'7" and up) or anyone who prefers a larger bag. The 40 and HAC read as travel bags rather than everyday bags, so height matters less. When trying to decide between two sizes, consider whether you lean toward underpacking or overpacking — your habits will determine whether you are happier with the smaller or larger option.
How Size Affects Resale Value
Size is the second biggest factor in Birkin resale value after condition. The current market hierarchy for secondary market premiums is: 25 > 30 > 35 > 40 > HAC. The Birkin 25 commands the highest premiums, often 40-100% above retail. The 30 trades at 10-50% above retail. The 35 frequently trades at or slightly below retail — the value play. The 40 trades at a discount to the 35. The HAC is a niche collector's piece. This hierarchy has held since approximately 2018 and shows no signs of changing, though the gap between 30 and 35 has narrowed slightly in recent years.
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Choosing Your First Birkin Size
If this is your first Birkin and you want maximum versatility, the 30 is the safe answer — it handles every situation. If you already have a collection and want the trendiest option, the 25 is the current darling. If you want the most bag for your money and you carry a lot, the 35 offers the best value. If you are male or use it primarily for travel, the 40 is practical. And if you are a serious Hermes collector who appreciates heritage, the HAC 50 is a distinctive conversation piece.
Frequently Asked Questions
What is the most popular Birkin size?
The Birkin 25 is the most sought-after (highest premiums), but the Birkin 30 is the most purchased and most frequently available. The 30 is the practical sweet spot for most buyers.
Do they make Birkins smaller than 25?
Hermes has produced limited runs of the Birkin 20 (Mini Birkin). These are extremely rare and command $20,000-$30,000+ on the secondary market despite their tiny size.
Is the HAC the same as a Birkin?
The HAC (Haut a Courroies) is the Birkin's ancestor — it existed before the Birkin was created in 1984. The HAC has a taller, more vertical silhouette. They are related but considered different bags by collectors and Hermes.
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