Louis Vuitton Slouchy PM vs. MM: Which size is right for you?

The Louis Vuitton Slouchy PM and the Slouchy MM share a relaxed, unstructured design, but their key difference lies in size and capacity. The PM (Petit Modele) is a compact bag - measuring roughly 10 inches in length - made for just the essentials, while the larger MM (Moyen Modele) is about 13 inches long and offers significantly more room for everything from a tablet to a water bottle.

Here’s everything you need to know to decide which Slouchy size aligns with your lifestyle and daily needs.

Louis Vuitton Slouchy PM

The Slouchy PM is the smaller of the two sizes, designed for those who appreciate a lightweight, minimalist handbag. Its compact silhouette captures the casual elegance of the Slouchy line while remaining easy to carry for errands, city outings, or evening events where you just need the basics.

• What it is: A small, unstructured shoulder and crossbody bag known for its casual yet luxurious aesthetic in Louis Vuitton's signature canvas.
• Key features: Crafted in Monogram or Damier Ebene canvas with leather trim, featuring a relaxed silhouette, high-quality hardware, and an adjustable strap.
• Price: Approximately $2,200
• Dimensions: Roughly 10 inches (length) x 8 inches (height) x 4 inches (depth)
• Sizing/Fit: Comfortably fits your phone, a slim cardholder, keys, lipstick, and a few small personal items.
• Pros: Lightweight and easy to carry. Transitions effortlessly from a daytime errand bag to an evening accessory. Its smaller proportions are great for petite frames. More understated look.
• Cons: Limited capacity means it can't hold a tablet, water bottle, or a large cosmetics pouch. Not ideal for those who need to carry more than the bare essentials.

This bag suits the person who prioritizes a light, streamlined accessory for daily necessities and chic, hands-free styling.

Shop this product: louisvuitton.com/women/handbags

Louis Vuitton Slouchy MM

The Slouchy MM is the larger, more versatile sibling, designed as a true everyday workhorse. It offers ample space for daily items beyond the basics, making it an excellent choice for work, travel, or anyone who likes to be prepared for the day without carrying a massive bag.

• What it is: A medium-sized, casual luxury handbag from Louis Vuitton with an unstructured, slouchy shape and generous capacity.
• Key features: Signature canvas construction with supple leather accents, a very roomy main compartment, and an adjustable strap for comfortable wear.
• Price: Approximately $2,500
• Dimensions: Roughly 13 inches (length) x 10 inches (height) x 5 inches (depth)
• Sizing/Fit: Capable of holding a tablet, small water bottle, full-size wallet, makeup bag, and other personal belongings with ease.
• Pros: Excellent capacity for daily use. Highly versatile for work, weekends, and even as a personal item for travel. Showcases the relaxed aesthetic beautifully. Great value for the space increase.
• Cons: Can get heavy when filled. May feel too large or overwhelming for petite individuals or for evening occasions. Its larger size means items can get lost inside without an organizer.

This bag is the perfect match for someone needing a stylish, practical, and spacious companion for a busy, on-the-go lifestyle.

Shop this product: louisvuitton.com/women/handbags

Louis Vuitton Slouchy PM vs. MM Comparison

Size & Capacity

The most important difference is, of course, the size. The Slouchy PM measures around 10 inches in length and is built for just your core essentials: phone, wallet, keys. It carries everything you need without excess bulk, functioning almost like an upgraded crossbody bag.

The Slouchy MM, at 13 inches long, offers a substantial increase in space. The extra three inches in length and two inches in height allow it to comfortably accommodate a tablet (like an iPad), a small water bottle, a large wallet, and even a book or a small makeup pouch. If you find yourself consistently needing more than a "phone and keys" setup, the MM is the practical choice.

Style & Everyday Use

Both bags share the same casual, unstructured aesthetic, but the size influences how this translates in daily wear. The Slouchy PM has a neater, more refined look because its smaller scale limits how much it can visibly "slouch." It works beautifully for running errands, weekend brunch, or a casual dinner, where its compact nature feels chic and appropriate.

In contrast, the Slouchy MM fully embraces the relaxed, laid-back vibe its name suggests. It's an ideal everyday bag for commuting, shopping, or for parents who need to carry a few extra items. Its spaciousness makes it a true carry-all that complements a casual wardrobe effortlessly without looking overly formal.

Price & Value

The Slouchy MM typically costs about $300 more than the PM. The PM provides a more accessible entry into the Slouchy line from Louis Vuitton. However, the MM delivers significantly more versatility and capacity for that price increase.

The better value ultimately depends on your lifestyle. If you require the extra space daily, the $300 is a worthy investment for a bag that will meet all your needs. If you prefer smaller bags and only occasionally wish you had more room, the PM remains the more sensible financial choice, perhaps complemented with a separate tote for days you need to carry more.

Which One Should You Choose?

Both models are excellent choices that embody Louis Vuitton's quality, but they serve different daily purposes.

Choose the Slouchy PM if:

• You are a minimalist who carries only the essentials.
• You prefer lighter bags that won't weigh you down.
• You want a chic bag that works well for both errands and casual evenings out.
• You have a petite frame and find that larger bags feel overwhelming.

Choose the Slouchy MM if:

• You need a dependable workhorse bag that can hold a tablet, water bottle, and more.
• You are looking for one primary bag that can handle work, weekends, and travel.
• You love a truly relaxed, slouchy look that a larger bag can achieve.
• You feel the extra space and versatility justify the moderately higher price point.

Frequently Asked Questions

What is the main difference between the Louis Vuitton Slouchy PM and MM?

The primary difference is size and carrying capacity. The PM is a small bag designed for essentials, about 10 inches long, while the MM is a medium bag, at 13 inches long, capable of holding a tablet and other daily necessities.

Can the Slouchy MM fit a laptop?

No, the Slouchy MM is generally not large enough to fit a standard-sized laptop. However, it can comfortably accommodate tablets or very small netbooks.

Is the strap adjustable on both sizes?

Yes, both the Slouchy PM and MM come with an adjustable strap that allows for both shoulder and crossbody wear, offering versatile styling options.

Do the Slouchy bags hold their shape?

No, and that's by design. The entire appeal of the Slouchy line is its unstructured, soft, and relaxed silhouette. If you prefer a more structured look, this may not be the bag for you.

Which size is better for travel?

The MM is an excellent option for a personal item or carry-on, as it holds more in-flight necessities. The PM is a great companion piece to pack inside your luggage to use as a smaller tour or evening bag at your destination.

Is the price difference for the MM worth it?

If you regularly need to carry more than your phone, keys, and wallet, then yes. The significant increase in capacity and versatility provided by the MM makes the roughly $300 difference a sound investment for a daily-use bag.

What are the bags made of?

They are typically crafted from Louis Vuitton's durable Monogram or Damier Ebene coated canvas, finished with natural cowhide leather trim and gold-tone hardware.

How should I care for my Slouchy bag?

Wipe the coated canvas with a soft, dry cloth. Keep the leather trim away from water, oils, and prolonged exposure to sunlight to avoid developing a dark patina too quickly or unevenly.