Victorinox Classic SD Review

Overview

The Victorinox Classic SD is a 7-tool EDC multitool with a blade, scissors, and file in a sleek, compact design perfect for daily pocket or keychain carry.

At 21g and 58mm long, it’s been a fixture on ultralight packing lists for decades — not because it does everything, but because it handles a surprising number of trail tasks without you ever noticing it’s in your pocket.

Widely considered the gold standard for ultralight backpacking multitools, this 21-gram pocket knife houses its tools in a body that’s only 2¼ inches long.

Key Specs

Spec	Value
Weight	21g (0.74 oz)
Length	58mm (2.25 in)
Width	18mm
Height	9mm
Number of Functions	7
Functions	Blade, scissors, nail file/screwdriver, toothpick, tweezers, key ring
Blade Style	Non-locking, smooth-edge drop-point
One-Hand Opening	No
Handle Material	ABS/Cellidor
Country of Origin	Switzerland
Comparison	See how Classic SD compares to similar gear

Performance

The Scissors: The Real Reason You’re Here

The scissors are the MVP of this tool, full stop. They’re sharp enough for opening food packages, cutting Leukotape and guyline, and filing down a toenail with the emery board. They remain surprisingly sharp and precise, even after emergency gear repairs on the trail. On a longer trip, you’ll reach for them more than anything else on the knife. The scissors are useful for opening food packages and trimming tape, shaping gauze or blister coverings — essentially the whole trail first aid and camp chore checklist in one small spring-loaded tool.

The Blade: Adequate, Not More

The blade is about 1 5/16 inches, and that puts a hard ceiling on what you can do with it. It’s suited for cutting open your mountain house meals, cutting open boxes, and thin rope — but any woodcarving or similar bigger projects get kind of difficult with such a small blade. The blade is slim and short and therefore isn’t suitable for extended cutting or laborious tasks. It’s also non-locking and requires two hands to deploy — a real constraint when you need to apply meaningful pressure. Upon initial deployment, the blade seems flimsy; however, in years and years of usage, the testing team has yet to see any failures. It’s not a blade you’ll trust for serious work, but it holds an edge well and arrives sharp.

Ergonomics and Deployment

All tools are easily deployed and can be operated to their intended capacity. Each of the three main tools — blade, file/screwdriver, and scissors — is equipped with a simple fingernail cutout and pulls out smoothly with minimal pressure. Even after years of pocket-living, the tools fold out easily and smoothly.

That said,

the small fit in the hand makes it harder to hold than some other options, especially since the handle is slick and offers no texturing to improve grip — a problem that’s compounded when exhausted, or in rain, snow, or high humidity.

The Other Five Tools

The nail file doubles as a 2.5mm flat-head screwdriver, which gets occasional use tightening an eyeglass screw or a headlamp battery door. When was the last time you saw a screw in the woods, much less one that needed turning? Fair point — but you’ll be glad it’s there the one time you need it. The nail file may seem a tad odd, but nails do both grow and get grubby — and it’s not so much fingernails that are of concern on long trips; mostly it’s toenails.

The tweezers, stored in the handle scales, are legitimately good — precise enough for splinter removal, tick extraction, or anything requiring fine motor work in lousy conditions. They’re also useful for removing splinters, assisting in blister treatment, or just reaching a small item in hard-to-reach places. The world-class tweezers hidden in Victorinox knives stand out compared to what you’d typically find on a knife at this price. The toothpick rounds things out — it’s a toothpick, no more to say.

Durability and Longevity

Construction is unsurpassed. Bear in mind the Classic is a small, lightweight blade — if you were to abuse it you could damage it. But used with care it should outlast you.

The blade steel and most other components are stainless INOX, which means the knife can handle most conditions without developing rust.

The scales, toothpick, and tweezers can readily and cheaply be replaced

if they ever do wear out.

The CleverHiker staff all have one in their ultralight medkit, and it has held a spot on their best multitools gear guide for many seasons.

Pros & Cons

Pros

• 21g for seven tools is essentially unbeatable weight efficiency
• Scissors are the real workhorse and stay sharp over years of use
• Tweezers and toothpick stored in the handle scales — zero weight penalty
• Swiss-made build quality far exceeds the ~$15 price tag
• Available in dozens of colors and handle styles; the Alox version trims 4g if you can live without scale tools
• Easy to replace when — not if — TSA takes it

Cons

• Blade is too short for any serious backcountry cutting task
• No blade lock limits control and safety under pressure
• Smooth, slick handle is hard to grip with wet hands
• 2.5mm screwdriver has limited backcountry utility
• Will be confiscated at airport security; plan accordingly

Who Should Buy This

You don’t need a big knife for backpacking. Many hikers have used the same Swiss Army Classic Pocket Knife for 10 years and never found the need to replace it with something different or bigger.

The Classic SD is the right call for any ultralight or thru-hiking setup where you want one compact tool to cover food prep, first aid, and minor gear repair without adding meaningful weight.

Unless you plan on skinning a deer or filleting a fish, this pocket knife is all you need.

If you’re planning anything heavier — processing wood, game, or thick rope — pair it with a dedicated blade like an Opinel No. 6 and treat the Classic SD as the supplement it’s designed to be.

Verdict

For 21 grams and roughly $15, the Victorinox Classic SD is one of the best value propositions in all of ultralight gear. The scissors alone earn it a spot in your kit; the tweezers and nail file are genuine bonuses. The blade’s short length and lack of a lock are real limitations you need to make peace with before buying — but if your trail knife duties are mostly food prep and tape trimming, this is the tool. It’s probably the best $15 you’ll ever spend for ultralight backpacking.