Brooks 110426-027 vs Saucony Peregrine 15

Buy the Brooks Cascadia 18, model 110426-027, ASIN B0D67TVK1X, when you want the men's trail shoe whose features name DNA LOFT v2, a Trail Adapt system, an articulated ballistic rock shield, TrailTack Green rubber, and a TPU mudguard, and when you will not treat the 1.5-pound figure in the product-dimensions block as the weight of one shoe. Buy the Saucony Peregrine 15, ASIN B0FK3J1P5L, when you want the men's trail shoe whose features say a 4-millimeter offset and, in the same feature list, 4-millimeter lugs, and when you will also read the description that says aggressive 5-millimeter lugs. Four and five are not the same lug. The card printed both. The fields quoted here do not print a Saucony style number. Do not invent one.

Short version. A HOKA Speedgoat 6 and an Altra Lone Peak 9 are the other trail pair, and the Lone Peak is the zero-drop shoe this Peregrine is not. A La Sportiva Tarantulace and a SCARPA Origin are climbing shoes, not trail runners. A Thule UpRide and a Yakima 8002114 carry a bike, which is a different way to get to the trailhead. The Cascadia feature says the predecessor is the Cascadia 17. It does not say the shoe is the Cascadia 20. RunRepeat's review notes a newer Cascadia. This ASIN is the 18, model 110426-027.

The Cascadia card is ASIN B0D67TVK1X. The brand is Brooks. The model is 110426-027. The department cell says mens. The sole material says Rubber. The date-first-available cell says December 6, 2023. The product-dimensions block says 12 by 8 by 4.5 inches and 1.5 pounds. That block is a shipping-style dimension on the listing. It is not labeled "weight of one shoe." One and a half pounds is 24 ounces. A trail shoe that weighs 24 ounces is a boot you would notice. Do not quote 1.5 pounds as the Cascadia 18 until a cell says it is the shoe. RunRepeat's brand-spec table for the Cascadia 18 lists a men's weight of 11.1 ounces, a women's weight of 9.9 ounces, an 8-millimeter drop, a 33-millimeter heel, and a 25-millimeter forefoot. That table is RunRepeat's brand-spec table. It is not an Amazon cell on B0D67TVK1X. The Amazon features do not print a drop, a stack height, or an ounce weight.

What the Cascadia features do print is the job. They say the shoe is for runners and mountain hikers, that it is carbon-neutral certified, and that the predecessor is the Cascadia 17. They name DNA LOFT v2 cushioning, TrailTack Green outsole rubber with 25 percent recycled material, a Trail Adapt system with an integrated midsole and an articulated ballistic rock shield, zonal outsole pods, a breathable mesh upper, overlays, and a TPU mudguard and toecap. Ballistic rock shield is the protection claim. It is not a metal plate with a thickness. Twenty-five percent recycled is a material claim about the rubber, not about the whole shoe. Carbon-neutral certified is a certification sentence. It is not a mile claim. The features do not print a lug depth. If you need millimeters of lug, you do not have them on this Amazon feature list. Do not borrow the Peregrine's 4 or 5.

The Peregrine card is ASIN B0FK3J1P5L. The brand is Saucony. The department cell says mens. The date-first-available cell says July 27, 2025. The features say a new blend of PWRRUN foam, full-coverage PWRTRAC rubber, versatile 4-millimeter lugs, a 4-millimeter offset, a forefoot rock guard, a high-strength mesh upper, and a D-ring for gaiters. The description says the shoe is named after the peregrine falcon and is built with aggressive 5-millimeter lugs, PWRRUN cushioning, and a lightweight low-profile package. Four-millimeter lugs in the features and 5-millimeter lugs in the description are the contradiction. Four-millimeter offset in the features is a drop, not a lug, and it sits in the same list as the 4-millimeter lug phrase, which is how a hurried reader adds them together or treats them as one number. They are different parts of the shoe. Offset is the heel-to-forefoot difference. Lug is the rubber tooth. The card uses 4 millimeters for both and then the description changes the tooth to 5.

RunRepeat's Peregrine 15 review describes the lugs it measured as about 4.7 millimeters and calls the drop a low drop that does not suit heavy heel strikers. That is a lab review, not an Amazon cell. It does not settle 4 versus 5. It shows a third number. This page will not pick 4, 4.7, or 5 as the lug. It will say the Amazon card disagrees with itself and a review measured something in between. The Amazon card does not print a style code in the fields quoted here. If the box says a style such as a five-digit Saucony number, match the box to the Peregrine 15 name and the men's department. Do not invent the style from a different colorway. The Cascadia at least prints 110426-027. The Peregrine listing, in this extract, does not return the favor.

Drop is the difference you can feel if you know which document you are reading. The Peregrine feature prints 4 millimeters of offset. The Cascadia feature prints no offset. RunRepeat's brand table prints 8 millimeters for the Cascadia 18. An 8-millimeter drop and a 4-millimeter offset are not the same shoe, and only one of those numbers is an Amazon feature. Buy the Peregrine if you want the 4-millimeter offset in a feature and you can live with the lug contradiction. Buy the Cascadia if you want the rock-shield sentence and you will get the drop from a brand table you name, or you will not quote a drop at all. Heel strikers and forefoot strikers are RunRepeat's commentary, not Amazon cells. Do not put them in the specification table.

Who should buy the Cascadia 18, and who should buy the Peregrine 15?

Buy 110426-027 if you want that model number, DNA LOFT v2, the Trail Adapt rock-shield sentence, TrailTack rubber, and the mudguard, and if you will not cite a drop or a shoe weight the Amazon card does not label. Buy the Peregrine 15 if you want the 4-millimeter offset in the features, PWRRUN, PWRTRAC, and a forefoot rock guard, and if you will not pretend the lug is both 4 and 5 millimeters. Buy the Cascadia if the listing has to name a predecessor and a model. Buy the Peregrine if a lower offset, printed on the card, is the reason you are leaving an 8-millimeter shoe, and you are willing to call that 8 millimeters a brand table rather than a Brooks Amazon cell.

Do not buy either shoe as a climbing shoe. The Tarantulace and the Origin are that page. Do not buy the Cascadia 20 because this card says Cascadia. The feature says the predecessor is the 17, which is how you know this one is the 18, and a later model is a later model. Do not buy a women's shoe from a department cell that says mens and then wonder why the size chart feels wrong. The cards are the men's listings these ASINs point at. A women's colorway is a different ASIN even when the model family is the same.

What is 110426-027 actually for?

This card is a men's Cascadia 18, model 110426-027, ASIN B0D67TVK1X, rubber sole, with the cushioning, rock shield, and mudguard the features name. Use it on trail, which is the category, and on the mountain-hiker sentence Brooks put in the feature. The rock shield is there so a stone in the tread does not write itself onto the sole of your foot. The card does not print how thick the shield is. The mudguard is there to block debris. It is not a waterproof membrane, and the features do not say waterproof. Mesh that is breathable and quick-drying is the upper claim. Quick-drying is not dry. A creek is still a creek.

The 12-by-8-by-4.5-inch dimension is a box-shaped number. A shoe is longer than it is tall, and a pair in a box can be 12 inches. Cite it as the dimension block, not as the length of the outsole. The 1.5 pounds sits in that same block. RunRepeat's 11.1 ounces is the number people mean when they talk about the shoe, and it is labeled here as RunRepeat's brand table so it cannot migrate into the Amazon cell. If you need the pair you will carry, put it on a kitchen scale. The scale is the measurement. The listing is the argument.

What is the Peregrine 15 actually for?

This card is a men's Peregrine 15, ASIN B0FK3J1P5L, with PWRRUN foam, PWRTRAC rubber, a forefoot rock guard, a gaiter D-ring, a 4-millimeter offset, and a lug depth the card cannot decide. Use the offset if you want less heel than an 8-millimeter shoe and you have cited the 8 millimeters properly. Use the rock guard as a forefoot claim, and do not upgrade it to the Cascadia's "articulated ballistic rock shield" sentence. Those are different nouns on different cards. The D-ring is the gaiter attachment. The Cascadia features quoted here do not name a gaiter ring. If you run in mud with gaiters, the Peregrine feature is the one that mentions the hardware.

The description's falcon sentence is marketing. It is not a speed rating. The July 27, 2025 date is when this listing says it appeared, not the day every Peregrine 15 was designed. A lug that is 4 millimeters in the features and 5 in the description will look like one or the other on the outsole you hold. Count the millimeters with a ruler if the tooth depth is why you are buying. A reviewer's 4.7 is that reviewer's caliper. It is a useful warning that the card is sloppy. It is not a third Amazon cell.

How do you fit them without mixing the two cards?

Try both on at the end of the day, with the socks you will run in. Neither card prints a width. RunRepeat's Cascadia brand table says normal and wide widths exist for the model family. That is the table, not a promise that ASIN B0D67TVK1X is the wide. The Peregrine review complains about a narrow toebox. That is a review, not an Amazon width cell. Your foot is the measurement. A rock shield does not fix a short toe box, and a 4-millimeter offset does not fix a wide forefoot. Lace them, walk a ramp if the store has one, and do not decide from the drop number alone.

Replace them when the lug that you measured is gone, not when a calendar says so. The cards do not print a mile rating. TrailTack and PWRTRAC are rubber names. They are not a promise that wet rock is suddenly easy. The Cascadia feature says the rubber is for wet and dry traction. The Peregrine feature says traction and durability on a variety of terrains. Both sentences are claims. Neither is a coefficient of friction. If the outsole is the reason you slipped, the claim did not survive the rock, and the card will not refund the afternoon.

What actually fails on these two cards?

The Cascadia card fails when 1.5 pounds is quoted as the shoe. It fails when an 8-millimeter drop from a brand table is called an Amazon feature. It fails when 11.1 ounces is called an Amazon weight. It fails when a Cascadia 20 review is pasted onto model 110426-027. It fails when a lug depth is invented because the Peregrine card had one. It fails when carbon-neutral certified is read as a waterproof rating. It fails when the women's weight on a brand table is sold as this men's ASIN.

The Peregrine card fails when 4-millimeter lugs and 5-millimeter lugs are both treated as the specification. It fails when the 4-millimeter offset is added to the lug or substituted for it. It fails when a reviewer's 4.7 millimeters is called an Amazon cell. It fails when a style number that is not on the card is invented. It fails when the forefoot rock guard is described with the Cascadia's ballistic-shield sentence. It fails when a July 2025 listing date is used as a design date. It fails when the shoe is ordered as a climbing shoe or as a zero-drop Lone Peak.

What is this comparison not?

This is not a road-shoe review. This is not the Speedgoat and Lone Peak review, except as the neighboring trail pair. This is not a laboratory report. RunRepeat's numbers appear only where this page names RunRepeat. This is not a price quote. Use the buttons. This is not every color of either shoe. Model 110426-027 is one Cascadia listing. A different color can be a different ASIN with the same features and a different photo. Look at the photo before you decide the shoe is the color in your head.

So which trail shoe should you buy?

Buy the Brooks if you want model 110426-027, ASIN B0D67TVK1X, the rock-shield feature, DNA LOFT v2, and TrailTack rubber, and if you will leave the drop and the ounce weight on the brand table or off the page. Buy the Saucony if you want ASIN B0FK3J1P5L, the 4-millimeter offset, PWRRUN, and a forefoot rock guard, and if you will settle the 4-versus-5 lug with a ruler. Buy neither if you wanted a lug depth and a drop printed the same way on both Amazon cards, or a labeled shoe weight on either card. The offset cell is the decision. The Cascadia dimension block is the warning.

No shoe video is embedded. A clip of a Cascadia 17, a Cascadia 20, or a different Peregrine year would not be these two listings. There is no video object.