Millet Chamonix 25+5L - Expandable 30L & 16" Urban Backpack

149.90€

🎒 25→30L Expandable Capacity: Adapts to long days
💻 Padded 16” Laptop Sleeve: Secure tech protection
🔄 Magnetic Roll-Top: Fast volume adjustment
⚡ Dual Side Access: Reach gear without unpacking
🧵 TPU-Coated Recycled Nylon: Water & abrasion resistant

Choose your size:

Color: Black/Tarmac

Black/Tarmac

Black

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Branded backpacks comes from our French warehouse and are shipped with secured express shipping only.

Our orders are shipped within 2 days.

Here are some estimates depending on your country, calculated from recent shipments.

🇫🇷 France: 2 business days
🇪🇺 EU: 3 to 6 business days
🇬🇧 UK: 4 to 5 business days
🇺🇸 🇨🇦 North America: 6-9 business days

Returns

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💳 Step 3: Once received and inspected, we will refund your order to the payment method used during your order, you do not have to do anything.

Chamonix 25+5L | MILLET Black/Tarmac - 149.90€

DIMENSIONS

55 cm x 28 cm x 18 cm
21,6" x 11" x 7,1" (H x W x D)
VOLUME

30 L
7,9 gal
WEIGHT

850 g
1,9 lbs
LAPTOP POCKET

16"

Chamonix 25+5L – Modular 30L Urban Backpack for Long Days & Active Mobility

The Chamonix 25+5L is the spacious and versatile format of the range. Designed for dynamic everyday use, it offers a 25-liter capacity expandable up to 30L thanks to its magnetic roll-top system with compression strap. Work, gym, cycling commutes or spontaneous weekend plans — it adapts to your pace.

Built from 420D recycled nylon with TPU coating, it effectively resists water splashes and urban abrasion. Its structured shape protects your gear while remaining comfortable to carry.

With its dual side zip access, you can quickly reach either the main compartment or the dedicated laptop sleeve for devices up to 16 inches, without fully opening the pack.

Chamonix 25+5L urban backpack in active city setting

Chamonix 25+5L dual side access and modular roll-top detail

What Makes It Ideal for Real Urban Life

🎒 Modular 25 → 30L Capacity – Adjustable volume for your needs.
💻 Protected 16” Laptop Sleeve – Dedicated padded compartment.
🔄 Magnetic Roll-Top Closure – Fast and secure adjustment.
⚡ Dual Side Access – Smooth organization without unpacking.
🧵 420D Recycled Nylon (TPU Coated) – Moisture & abrasion resistant.
🎒 Zipped Front Pocket – Quick access to essentials.
🗝️ Internal Mesh Pocket with Key Clip – Smart organization.

Its expandable 30L format lets you carry a laptop, clothing, gym gear, documents and accessories without compromising silhouette. In compressed mode, it stays compact and urban; fully extended, it absorbs the unexpected.

The thermoformed front panel with crossed elastic cords — a historic Millet signature — reinforces structure while adding a distinctive outdoor identity.

Why You’ll Love It

The Chamonix 25+5L is designed for those who don’t want to switch bags depending on the day.

It carries a 16” laptop securely.
It stays comfortable in motion thanks to ergonomic shoulder straps.
It resists light rain and intensive commuting.
It enables efficient organization without wasted time.
It blends outdoor spirit with urban design.

If you’re looking for a durable, modular 30L urban backpack that can handle work, sport and daily commuting, the Chamonix 25+5L is the most versatile size in the range.

Chamonix 25+5L backpack for work and cycling commute

Technical Specifications – Chamonix 25+5L

Brand: Millet
Type: Modular urban backpack
Volume: 25 + 5 L (expandable to 30L)
Weight: 850 g
Dimensions: 55 x 28 x 18 cm
Back length: 42 cm
Main fabric: 420D recycled nylon – TPU coating
Compatibility: Laptop up to 16” + tablet
Access: Dual side zip + magnetic roll-top
Organization: Zipped front pocket, internal mesh pocket with key clip
Use: Work, urban mobility, cycling, long days

FAQ – Chamonix 25+5L

Is the 30L volume suitable for a long workday?

Yes. It accommodates a 16” laptop, charger, documents, gym clothes and daily essentials without running out of space.

Is it suitable for cycling and urban commuting?

Yes. The ergonomic shoulder straps and sternum strap ensure stability and comfort while moving.

Does it protect against rain?

The TPU-coated 420D nylon protects effectively against splashes and light moisture. For prolonged heavy rain, a rain cover is recommended.

Can it be used for a short weekend trip?

Yes. In its expanded 30L configuration, it can carry clothing and essentials for a short getaway.

Chamonix 25+5L | MILLET

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Chamonix 25+5L – Modular 30L Urban Backpack for Long Days & Active Mobility

What Makes It Ideal for Real Urban Life

Why You’ll Love It

Technical Specifications – Chamonix 25+5L

FAQ – Chamonix 25+5L

Is the 30L volume suitable for a long workday?

Is it suitable for cycling and urban commuting?

Does it protect against rain?

Can it be used for a short weekend trip?

Customer Reviews

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