TomToc T66 Navigator vs T67: Which Travel Backpack Version Makes Sense

Introduction

TomToc has quietly grown its duffel-style travel backpack line into a small family. What started with the original T66 Navigator is now essentially four bags: the original T66, the updated T67, and two new versions of the T66 made with a lighter riptop fabric, one at 40 L and a new smaller 28 L size, with fresh green and light gray colorways added.

The riptop fabric is the headline change. It cuts weight substantially compared to the original T66 while keeping the same design and dimensions, and the smaller 28 L version opens the line up to travelers who want a personal-item-sized bag rather than a full carry-on. Here is how the versions differ and who each one suits.

Size and Capacity: What Actually Fits

The three larger versions, the T67 and both fabric options of the T66, share essentially the same footprint: roughly 20.5 inches long, 13 inches wide, and 9 inches deep. All three work fine as a carry-on for most airline overhead bins.

While the original T66 is listed at 40 L and the T67 at 38 L, real-world fill tests suggest both land closer to 35 to 37 L. Since these are soft-sided bags, exact capacity is hard to pin down, and the listed figures read a bit ambitious. The riptop version keeps the same design and dimensions, so its usable capacity should be very similar.

Carry-On and Personal Item Fit

If you want something smaller to slide under the seat, the 28 L riptop version is the one to look at. It measures 17.7 by 11.8 by 7.9 inches deep, which fits comfortably inside a standard 18 x 14 x 8 personal item sizer.

That makes it a workable personal item on most airlines, with the caveat that very restrictive budget carriers with tighter sizers may still be a stretch.

Weight: Where Riptop Earns Its Keep

Weight is where the fabric upgrade matters most. The 40 L riptop T66 cuts a quarter pound from the original, and since these bags were already well under 3 pounds to begin with, that is a meaningful saving. Dropping to the 28 L riptop version removes another quarter pound on top of that.

One concern with lighter fabric is whether the bag still holds its shape. All versions include a firmer panel in the bottom that gives structure and keeps the base standing up while you pack. The riptop version flops over slightly more, but not enough to affect keeping the bag open or packing it normally.

TomToc T66 Navigator

The original T66 Navigator set the template: a duffel-style travel backpack with a flap that overhangs the main zipper, dual buckles on the side straps, and a listed 40 L capacity that realistically behaves closer to 35 to 37 L. It remains a solid choice, but if weight is a priority, the riptop version delivers the same design for noticeably less heft.

TomToc T67

The T67 was positioned as an upgrade to the original T66 design, and the differences are easy to spot side by side. It drops the overhanging flap above the main zipper, runs the webbing strap around the front at the bottom instead of just the sides, changes the water bottle pockets, and orients the luggage pass-through sleeve vertically rather than horizontally. At a listed 38 L, it is also marginally smaller on paper, though in practice the gap is minor.

Packing the 28 L Version

The smaller riptop T66 packs more than its label suggests. A fill test kept within the listed dimensions landed right at the 28 L mark, so the stated capacity is honest.

Because the bag is smaller, extra-long packing cubes around 14 inches are too much, but cubes roughly 12 inches wide fit well. Matador gear and packing cubes work, with any combination of large and medium or medium and small fitting, though not all three at once. Peak Design cubes also fit, either a large cube with room above for loose clothes or a small cube with extra space for cameras and gear. Six Moon Design cubes are rounded on one edge and fit neatly into corners, two fitting almost perfectly, though they are lightweight fabric at a higher price. GoNext compression cubes are a cheaper alternative with thicker fabric that squishes gear down to maximize space.

A realistic setup looked like this: all clothes compressed into a large Peak Design cube, a small tech cube and toiletry bag on top, a light windbreaker tucked into a corner, and a lightweight sweater filling the remaining top space. Batteries, chargers, and cables went into the top exterior pocket, a travel wallet into the front pocket, and a small tablet plus e-reader into the large back compartment. An umbrella and a full size water bottle filled the two side pockets, with the side straps running over the bottle tops so nothing falls out.

Fully packed, the bag weighed about 6.4 kg, or 14.1 pounds, on a scale, and it still was not stuffed to its limits.

Small Updates on the Riptop T66

Beyond the fabric, the riptop T66 picks up a handful of minor refinements. Duraflex hardware replaces the previous fittings, one side strap swaps a double buckle for a simple adjuster, and the front branding changes to a small nondescript T. The back of the bag gains a small hanging loop, the side handle gets extra padding, and the webbing is upgraded to a higher quality seat-belt style strap.

None of these changes transform the bag, but together they add up to a slightly better-executed version of an already well-regarded design.

Buying Advice

If you want a full-size carry-on duffel backpack and weight matters, the 40 L riptop T66 is the version to get. If you specifically need a personal-item-sized bag for under-seat use, the 28 L riptop T66 is the clear pick, and it doubles as a lighter everyday option. The T67 makes sense if you prefer its design changes, particularly the vertical luggage pass-through and cleaner front panel. The original T66 still works, but with a lighter fabric option available in the same shape, it is harder to justify over the riptop update.

Conclusion

TomToc’s duffel backpack line now covers two distinct needs with a shared design language. The riptop fabric update delivers real weight savings without sacrificing structure, and the 28 L size fills a genuine gap for travelers packing a personal item alongside or instead of a carry-on. Choose based on the volume you actually need, and you will not go far wrong within this family.