A natural veg tan double shoulder unrolled on a workbench beside its opened shipping box.
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Nikwax Nubuck and Suede Proof Review: Waterproofing Napped Leather

ByPeter Joeseph 'Briefcase Maker' Kalafatis

A water-based proofer that goes on wet boots, aimed at keeping the nap soft and the membrane breathing.

Nikwax Nubuck and Suede Proof is a water-based treatment for napped leather footwear, sold in a 125 ml bottle, and the question it answers is whether suede and nubuck can be made to shed rain without the stiff, matted finish that wax and heavy oils leave behind. This review works from Nikwax’s own product pages, independent written reviews, hiking forums and retailer customer ratings, not from hands-on testing.

Video: How to Use Nikwax Footwear Cleaning Gel and Nubuck & Suede Proof DUO-Pack, from Nikwax North America on YouTube.

Suede and nubuck present a different problem from smooth grain leather. Weaver Leather Supply’s terminology page describes nap as the soft, raised surface left when the natural grain layer is removed, and suede as a finish sanded into inner splits, usually on the flesh side. That open, fibrous face is the thing a proofer has to protect. It needs to repel water while leaving the nap standing, which is a harder brief than sealing a closed grain.

What Nikwax says the product does

Breathable, PFAS-free, applied to wet footwear, renewed when it wears off.

A thickness gauge measuring the edge of a vegetable-tanned leather double shoulder.

The maker’s product page calls it a “high performance waterproofer designed to maintain texture and breathability” of nubuck and suede footwear. Nikwax lists it as PFAS-free and non-flammable, recommends it for boots with Gore-Tex, eVent, Sympatex and other waterproof membranes, and offers it in a 125 ml size priced from $10.45 to $12.55 on its own store. It can be sponged or sprayed on.

The directions carry most of the useful detail. Shake the bottle, clean the footwear first with Nikwax Footwear Cleaning Gel, protect the work surface, then apply to clean, wet footwear from about 15 cm away. After two minutes, wipe off the surplus with a cloth and let the boots dry naturally. Nikwax’s general footwear care page adds a 24-hour drying period before use for its waterproofing treatments.

Two lines on the page deserve more weight than the headline claims. Light or colored leather may darken, and the maker says to test on a hidden area first. The page also states plainly that water repellency wears off with use and has to be renewed, and that dirt weakens it, which is why cleaning comes first every time.

Retailer copy fills in the chemistry claims. LEMS Shoes describes durable water repellency that “develops on air drying” and a treatment that coats individual fibers rather than sealing the surface. That page gives the spray distance as 5 cm, not the 15 cm on the Nikwax page, so buyers should follow the label on the bottle in hand. Evo lists it as water-based, non-aerosol and free of fluorocarbons and VOCs. The same listing frames the pitch around breathability: wet footwear breathes less and traps moisture inside, and a repellent layer is meant to keep the outer leather, and so the feet, drier for longer.

Does it keep water out?

Most long-term users say yes; one reviewer saw no effect at all.

The strongest independent report comes from Australian Hiker, which says it bought the product at retail and used it for about three years on suede-outer mountaineering boots in snow. The reviewer describes a week of walking through mid-calf slush with dry feet and credits the treatment with keeping water from “seeping in through the fabric of the boot.” The site scored it 8.8 out of 10, docking points mainly on value: at an Australian retail price of AUD $22.99 for 125 ml, the reviewer wrote that it can get expensive with regular use, though not on a per-use basis.

User reviews on Trailspace split sharply. Gary Leatham, in November 2015, gave it 4.5 stars and wrote that surface water and mud “beads up and sheds off like crazy” once dry. Daniel Atreau, in July 2018, gave it half a star and reported that water soaked in the same way after a first and a second application. Two reviews on SummitPost, from 2008 and 2014, both rated it five out of five, one calling it “much simpler and less messy than tradition waxes and silicon based gels.”

REI’s listing for the spray, under the name Nikwax Nubuck & Suede Waterproofing Spray, carried 4.5 out of 5 from 59 reviews. Several reviewers there reported dry feet through rain and wet streets, and one who compared products side by side on a pair of Lowa boots called it “far and away the best.”

The split verdict points at preparation. Nikwax insists on clean, wet footwear, and a 2019 poster on the Walkhighlands forum put the condition simply: it “works fine as long as you clean the boot before application.” The same poster noted that on membrane boots the liner sets the limit on breathability anyway.

Will it change the color or the nap?

Darkening is the most consistent complaint, and the maker warns about it.

Macro view of growth lines and a small scar on the grain of a veg tan leather shoulder.

Gary Leatham’s otherwise positive Trailspace review listed as a con that the product “can slightly increase leather color density,” and advised testing first. That matches Nikwax’s own darkening warning. One REI reviewer, rated three stars, said the spray protected the suede but left the texture less smooth and somewhat splotchy, even after brushing.

Others reported the opposite. A REI reviewer who wore treated suede through a Wisconsin winter wrote that it “didn’t stain or spot the suede.” The difference may come down to color, leather and how evenly the product went on, but none of the sources isolates the cause, so the safe route is the one on the label: try it on a heel counter or tongue before the toe.

The sponge-on bottle drew one specific mark-down. Leatham found that the scrubber face under the cap wore down quickly on rough leather and said a sturdier brush would have earned five stars.

Fumes split reviewers too. Trailspace’s reviewer reported none, while one four-star buyer on the LEMS page said applying it outdoors “felt like a toxic job.” Applying it in a ventilated space covers both readings.

How it compares with an aerosol suede protector

Wet boots and wiped surplus against a dry spray and a short wait.

The more familiar route on a drugstore shelf is a spray protector such as KIWI Suede Protector. KIWI’s own protection video describes spraying cleaned shoes from about 20 cm and letting them dry for 30 minutes, a quicker routine than Nikwax’s wet application and natural drying. Reviews of the larger KIWI kit on Mayfair Farms list two cons for that protector: it needs multiple coats, and it gives off strong fumes during application.

Roundups that rank both kinds of product tend to place Nikwax high but flag the extra steps. A Day Trip named it the best choice in a September 2026 list, with water that “beads up and rolls right off,” and listed as cons that shoes must be cleaned first and that the bottle can drip. Thewearify, in May 2026, picked the Nikwax DUO-Pack of cleaning gel and proofer as its premium choice and marked it down for needing more time. Footwind called it best for breathability in December 2025. None of these three describes a controlled test protocol, and two rely partly on aggregated user feedback, so their rankings say more about consensus than measurement.

The practical trade is this. The KIWI routine, as its maker describes it, is quicker. Nikwax asks for a wash first and patience after, and in return claims a water-based, PFAS-free treatment designed around breathable linings.

Who the sources suggest it suits

Hikers and wet-weather walkers more than owners of pale dress suede.

A veg tan leather shoulder with chalk layout lines for straps and panels drawn around marked flaws.

The reports cluster around outdoor footwear: mountaineering boots in snow, hiking boots in Maine rain, three-season boots on long winter walks. Those are the users the maker writes for, with its membrane compatibility and its pitch about keeping feet warmer and drier. For them the darkening risk is a small price and renewal after heavy wear is routine.

Owners of light-colored suede loafers or a soft suede bag have more reason for caution. The darkening warning, the splotchy-texture report and the need to soak the item before treating it all weigh heavier on a pale, delicate piece than on a pair of brown trail boots.

Bags and briefcases in smooth vegetable-tanned leather are a different case again, and the product is not sold for them. The Journal’s notes on what rain does to a bridle leather briefcase and on how vegetable-tanned and chrome-tanned leathers differ cover that side.

What Amazon buyers report, and buying notes

A strong rating at a price close to the maker’s own store.

The Amazon listing showed 4.4 out of 5 from 7,104 ratings in October 2026, at $10.43, according to the Amazon product page. That price sits at the low end of Nikwax’s own range for the 125 ml size, and the rating is in line with REI’s 4.5 from a far smaller sample.

Nikwax sells the product with both spray and sponge applicators, and retailer listings do not always make clear which one a given bottle carries. Check the listing photos before ordering if the applicator matters.

The order of work from the maker’s directions bears repeating. Clean first, ideally with a cleaner made for the job. Wet the boots. Apply evenly, wipe off the surplus after two minutes, and let them dry naturally rather than by a heater. Test on a hidden spot first, and plan to renew it once the water stops beading.

Nikwax Nubuck & Suede Proof, 125 ml: The listing this review covers, showing 4.4 stars from 7,104 ratings at $10.43 when checked on October 19, 2026. See it on Amazon (affiliate link).

As an Amazon Associate I earn from qualifying purchases. A commission may be earned if you buy through this link, at no extra cost to you.

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