Peak Design Travel 45 vs Patagonia Black Hole MLC 45

Peak Design Travel Backpack 45L vs Patagonia Black Hole MLC 45 is a carry-on fight: a rear-panel backpack you can expand from 35 to 45 on one side, a clamshell suitcase that converts to backpack straps on the other. If you will wear the bag as a backpack through a terminal and a city walk, buy the Peak Design 45. If you pack like a suitcase and you want TPU that sheds weather, buy the Black Hole MLC 45. Most walkers should own the Peak Design. The MLC is the hotel-and-overhead clamshell.

Short version. Yesterday’s Farpoint versus Allpa is the other carry-on fork. This page is 45 liters and two different openings. The Daylite is the day bag you peel at the cabin. Atmos versus Baltoro is a 65-liter ridge. Check live prices. A stuffed 45 can miss a regional-jet bin. Weigh it. Measure it.

This is a comparison of two 45-liter carry-ons you can still buy. It is not a checked duffel and it is not a hiking 65. Peak Design Travel 45 is the expandable backpack: top, side, front, and rear access, UltraZip, a 16-inch-class laptop sleeve, tuck-away hipbelt, luggage pass-through, 400D recycled nylon canvas. Black Hole MLC 45 is Patagonia’s convertible suitcase: clamshell, backpack and shoulder-strap modes, recycled TPU laminate, a laptop panel, Fair Trade Certified factory language. Confirm 45L. A leftover 40L Farpoint photo titled as a Peak Design is a dump.

Confirm Travel Backpack 45L / BTR-45-class and Black Hole MLC 45 / 49307-class. A leftover 30L Peak Design is a different bag. A Black Hole duffel 40 is a duffel, not the MLC. Airline bins still win. Measure.

Who should buy the Peak Design 45, and who should buy the MLC 45?

Buy the Peak Design 45 if you will wear it as a backpack and you want rear-panel access without dumping the bag on a dirty floor. Buy the MLC 45 if you pack like a suitcase and you want TPU that shrugs a rain. Buy neither if the Saturday is a ridge. That is Atmos versus Baltoro. Farpoint versus Allpa is the 40-versus-35 sibling. This page is 45.

A Tuesday refuge is the walk these bags are for after the plane. Weekday state parks still want a day bag you peeled. Shoulder-season parks still want a reservation. A 45 does not skip the gate.

What the Peak Design Travel 45 is actually for

Peak Design Travel 45 is a backpack that expands from a carry-on-minded 35 toward 45 when you unzip the expansion. Rear panel, top, side, and front zips. UltraZip is Peak Design’s abrasion story. A laptop sleeve that takes a 16-inch-class machine. A tablet sleeve. Internal mesh. Tuck-away straps with magnetic catches so a checked bag does not eat a hipbelt. Luggage pass-through. 400D recycled nylon canvas. It works with Peak Design cubes. It also works with cubes you already own.

The Peak Design Travel Backpack 45L black is the live BTR-45 we named. Confirm 45L. Check live prices. Sage and other shells exist. A leftover Everyday Backpack 20L photo titled as a 45 is a dump.

Do: collapse toward 35 for a tight bin, hipbelt on for a walk, laptop in the sleeve you can still show at a checkpoint. Don’t: a 45 stuffed until the zipper smiles. The Farpoint is lighter on some backs. Try both if you can. A store floor still wins.

What the Black Hole MLC 45 is actually for

MLC is Patagonia’s Maximum Legal Carry-on: a soft-sided 45-liter suitcase with a clamshell, backpack straps, a shoulder-strap mode, and straps that tuck. Recycled ripstop with a recycled TPU laminate is the Black Hole story. A laptop panel that zips for a checkpoint. Interior pockets. Exterior lash points. About 22 by 14.5 by 7.6 inches on Patagonia’s sheet, about 3 pounds 10 ounces. Fair Trade Certified factory language is Patagonia’s sentence. Meets most carry-on requirements is still “most.” Measure the bin you actually fly.

The Patagonia Black Hole MLC 45L is the live 49307-class we named. Confirm MLC 45, not a Black Hole duffel. Check live prices. Noble Grey and black are common shells. A leftover 40L duffel photo titled as an MLC is a dump.

Hiking a destination still wants a day bag. The MLC is the overhead. The Daylite is the trail. Do not hike a 45 on a fire lookout. A lookout is a different Saturday.

A regional jet is the test a 45-liter listing cannot print

International carry-on language is a brochure. A 50-seat bin is a ruler. Collapse the Peak Design. Do not overstuff the MLC. Weigh it. A bag that does not close on a hotel bed will not close at a gate. Gate-check is a story. A laptop in a gate-checked bag is a story you will not like. Peel the electronics. Peel the Daylite.

The Daylite is the live day pack we named when you want a bag that is not the 45. Check live prices. Wear it empty on the plane or stuff it. Sunday after checkout is the walk.

Cubes help both bags. Peak Design’s own cubes fit the 45. Cubes you already own fit the MLC. A black-hole of loose socks is how people sit on a floor in a terminal. Pack the night before. Car packing is the other Saturday. This is the overhead.

TPU sheds rain. Canvas wants a cover in a real storm.

Black Hole’s TPU laminate is why people finish on Patagonia when the forecast is already a joke. Peak Design’s canvas is weatherproof-minded and still a fabric. A rain cover or a dry bag for the laptop is the honest extra if the walk from the lot is a storm. Neither bag is a dry box. A tarp is a camp. A 45 is a terminal.

Dirt: shake the MLC. Brush the Peak Design. A washing-machine speech is on the care tag. Read it. A TPU bag in a hot dryer is a bag you will replace. Line dry. Inspect zippers before a trip, not at a curb with a shuttle clock.

What this fight is not

It is not Farpoint versus Allpa. It is not a 65-liter ridge. It is not a Kyte overnight. It is two 45-liter carry-ons, plus the Daylite we peel for the park. Confirm 45. Confirm MLC. A duffel photo titled as an MLC is a dump.

A weekday cabin still wants a bag that walks from the lot. A scenic byway still wants a day bag in the back seat. Check live prices.

Straps you tuck are straps you should still try on

Peak Design’s harness is a backpack harness. The MLC’s backpack mode is a convertible. If you will walk a mile of terminal plus a city, try the Peak Design on a full bag. If you will roll a companion bag and lift the 45 once, the MLC’s handles are the story. A hipbelt you never unclip is a hipbelt you should have used. Tuck it for a check. Un-tuck it for a walk.

Laptop: both have a panel. Put the charger in the same pocket every time. A cable in a 45 you packed at 1 a.m. is a cable you will buy again in an airport. A camera on a hike is a different wrap. A 45 is not a padded cube unless you add one.

A personal item is the bag that saves a gate-check

A stuffed 45 can still miss a regional-jet bin. The move is a collapsed Peak Design plus a Daylite or a small tote you wear, or an MLC that actually closes plus the same Daylite. Put the laptop, the charger, the meds, and the one shirt you will still like if the 45 goes under the plane in the personal item. Gate-check is a story. A laptop in a gate-checked bag is a story you will not like. The Daylite is the live day pack we named for that job.

Weigh both bags at home. A bathroom scale is a better friend than a gate agent with a hook. Most “carry-on” language is a brochure. A 50-seat bin is a ruler. Collapse toward 35 on the Peak Design. Do not run the MLC zipper until it smiles. Farpoint versus Allpa is the lighter sibling if 45 already feels like a lie on your back.

Pack the night before. A 1 a.m. 45 is a floor sit in a terminal.

Cubes: one for clothes, one for dirt clothes, a pouch for cables you will use every day. Peak Design’s own cubes fit the 45 and clip in. Cubes you already own fit the MLC’s clamshell. Shoes in a sack so grit does not live in a shirt. Liquids in the same pocket every time. A black-hole of loose socks is how people unpack on a terminal floor. Car packing is the other Saturday. This is the overhead.

Laptop panel: both bags have one. Put the charger in the same pocket every trip. A cable you packed “somewhere” is a cable you will buy again at an airport. Camera gear wants a padded cube you add. A 45 is not a padded cube by itself. A camera on a hike is a different wrap. The Daylite can be the photo bag if the 45 is already the clothes.

A city walk is the test a clamshell listing cannot print

Peak Design’s harness is a backpack harness. Load it. Walk a mile. If the hipbelt is theater, you stuffed 45 liters of bricks. The MLC’s backpack mode is a convertible. It will get you through a terminal. A two-mile city walk in a convertible suitcase is why people finish on Peak Design. Handles on the MLC are the hotel-to-overhead story. Pick the trip you actually take, not the trip in the photo.

A Tuesday refuge still wants a day bag you peeled. Weekday state parks still want the same. A 45 on your back at a fire lookout is the wrong bag. A lookout is a 65 or a day pack, not a carry-on. Atmos versus Baltoro is that ridge.

So which 45 should you buy?

Buy the Peak Design Travel Backpack 45L if you will wear the bag and you want rear-panel access. Buy the Patagonia Black Hole MLC 45 if you pack like a suitcase and you want TPU. Our default for a walking trip is the Peak Design. Our default for a hotel-and-overhead trip is the MLC. Collapse for a tight bin. Peel a Daylite for the park. Check live prices. A 65 is a different Saturday.

Farpoint versus Allpa still lives next door. Weekday parks still want the day bag. A 45 on a closet floor is a receipt. A 45 you measured for the bin is a trip.

Also in the magazine

Keep going with Farpoint versus Allpa, the Daylite, Atmos versus Baltoro, and hiking a destination. Check live prices.