Expandable TUMI Backpacks: How Much Extra Depth You Get

A TUMI expandable backpack gains between 5.5cm and 7cm of depth on most of the models we list, going by the measurements printed on the TUMI tag. The Montana goes from 14cm to 19.5cm. The Medium 15″ Expandable goes from 18cm to 25cm, and both Navigation backpacks go from 18.5cm to 25.5cm.

Below are the standard and expanded figures for five backpacks, side by side, with RM prices, materials and colours.

What each TUMI expandable backpack measures, standard and expanded

Four of the five are preorders from the TUMI outlet physical store, and their listings quote the tag directly. The tag gives three measurements, with an expanded figure in brackets after the third. The fifth bag, the Alpha Bravo Navigation, labels the same three as length, width and depth.

Only the third figure has an expanded value. The first two are printed once on every tag, so the listings show no change in length or width when the bag is opened up.

Montana: the slimmest starting point

The TUMI Montana Backpack – Outlet Physical Store starts at 14cm deep, which is 4cm less than the next slimmest bag here. Unzipped it reaches 19.5cm, a gain of 5.5cm. It is also narrower: the tag reads 40.5cm X 30.5cm, against 35.5cm for the second figure on the three mid-sized bags.

Expanded, the Montana ends up 1.5cm deeper than the Medium 15″ Expandable is when closed. That suits someone who wants a thin bag most days, with room in reserve for the days you carry more. It is listed in Thyme, in 95% nylon with 5% leather trim and 100% polyester lining, from RM1,359.

Three bags that add 7cm of depth

The Medium 15″ Expandable and the two Navigation backpacks share the same first two figures, 40.5cm X 35.5cm, and each gains 7cm when expanded. They differ in material, colour choice and price.

The TUMI Navigation Backpack – Outlet Physical Store has the lowest starting price of the five, from RM1,309. Depth is 18.5cm standard and 25.5cm expanded. It comes in Colour 1475, in 70% polyester, 25% ballistic nylon and 5% leather with 100% polyester lining.

The TUMI Medium 15″ Expandable Backpack – Outlet Physical Store is from RM1,319 and sits 0.5cm shallower at both settings: 18cm standard, 25cm expanded. The listed colours are Spruce, Castle Rock Grey, Navy and Pavement. The material is 90% ballistic nylon, 5% polyester and 5% leather with 100% polyester lining, the highest share of ballistic nylon in this group.

The TUMI Alpha Bravo Navigation Backpack matches the outlet Navigation on size: 16 inches (40.5 cm) long, 14 inches (35.5 cm) wide and 7.25 inches (18.5 cm) deep, expanding to 10 inches (25.5 cm). It is from RM1,559 in Black Geometric, a geometric-jacquard ballistic nylon. The listed materials are 55% polyester, 35% ballistic nylon, 5% PU and 5% leather, with 100% polyester lining. Its listing also names a padded laptop compartment, multiple exterior zip pockets and an add-a-bag sleeve for luggage handles.

On laptop fit, the Alpha Bravo Navigation listing is the only one that spells it out: up to 15 x 10 x 0.875 inches (38 x 25.5 x 2.25 cm). The outlet tags each print a second, smaller set of measurements without a label. These are 38cm X 25.5cm X 2.25cm on the Navigation, 38cm X 26cm X 2.5cm on the Medium 15″ Expandable and 38cm X 24cm X 2.5cm on the Montana. If you carry a specific laptop, ask before you order.

Nomadic: the largest bag, and a tag figure to confirm

The TUMI Nomadic Backpack – Outlet Physical Store is the biggest of the five before any expansion. Its tag reads 47.5cm X 38cm X 23cm, so the standard depth is already 4.5cm more than the Navigation’s. It is from RM1,729 in Colour 1475, in 70% polyester, 25% ballistic nylon and 5% leather with 100% polyester lining.

The expanded figure needs a second look. The tag prints “23cm (54cm exp)”. On the other four bags the bracketed figure is 5.5cm or 7cm above the standard depth, and 54cm is far outside that pattern. We are quoting it exactly as printed, and we would not suggest planning your packing around it. If the expanded size matters to you, message us on WhatsApp at +1 603 440 9886 and ask for it to be checked first.

Which one fits how you pack

• A slim daily bag with some reserve: Montana, 14cm to 19.5cm.
• The 7cm expansion at the lowest starting price: Navigation, from RM1,309.
• Four colours to choose from and mostly ballistic nylon: Medium 15″ Expandable, from RM1,319.
• An add-a-bag sleeve named in the listing, for use with luggage: Alpha Bravo Navigation, from RM1,559.
• The largest standard size: Nomadic, 47.5cm X 38cm X 23cm before expansion.

If you fly with the bag as cabin baggage, compare the expanded depth with your airline’s published limit, since each airline sets its own.

If the model or colour you want is not listed, you can ask us to buy it from a US store through the buy for me service.

Prices and how ordering works

Starting prices run from RM1,309 for the Navigation to RM1,729 for the Nomadic. “From” means the lowest option on the page, and other options can cost more. All five are on the TUMI brand page.

Each one is a preorder. The bag is bought new from the US brand store after you order, and estimated delivery is 30 calendar days. You can pay in full or, where the product page offers it, pay a 50% deposit now and the balance later. Checkout shows when the balance is due for your country.

Delivery is free within Peninsular Malaysia. Sabah, Sarawak and Labuan pay RM21 per item, or nothing on orders over RM 2,200. Every other country sees its fee at checkout, and the shipping fees page has the details.

Returns are accepted within 30 days of delivery. A change-of-mind return has to be in new condition, carries a 10% restocking fee, and the cost of shipping it back to the seller is deducted from your refund. Exchanges are only for items that arrive damaged, so it is worth settling on depth before you order. If a bag is damaged when it arrives, report it with photos straight away. Full terms are on the refund and returns page.