Glove liners, and the fit mistake that makes them colder than nothing

The rule that decides whether a liner works at all

Warmth in a glove comes from air that your hand has heated and the glove has trapped. A liner adds a layer of that air - as long as there is space for it.

Put a liner inside a glove that already fits snugly and you do the opposite: you compress the insulation, squeeze the hand, and slow the blood supply that was doing most of the warming in the first place. The result is a colder hand than the same glove with nothing underneath, which is why so many people try liners once and conclude they do not work.

So the sequence is: buy the glove a size up if you intend to wear a liner, or buy a liner for the mitten rather than the glove, where there is more room. The sizing page has the measurement and the two-finger test, and the format comparison explains why mittens win on warmth.

Who each of these is for, and who should skip them all

• Most skiers: the Minus33 merino. Published fiber content, published weight, five sizes, twenty dollars.
• Anyone who takes photos or checks a map: the Smartwool. The touchscreen fingers are the feature that means the liner is actually worn rather than left in a drawer.
• Itchy skin, or a liner washed every week: the Seirus Thermax. Synthetic, fast drying, cheap - with the skip note on sizing.
• Skip all three if your gloves are snug. See above. Fix the glove first; a liner cannot buy you room you do not have.
• Skip them for small children. Two layers on a four-year-old’s hand is two layers to pull off in a lift queue, and it doubles the chance of a mitten disappearing. A long-cuff mitten solves the actual problem at that age.

What this page ranks on

• 1. Published fiber content. The figure that predicts whether a liner still works damp. Merino does; a thin synthetic does less well. One of three publishes percentages.
• 2. Published weight. A liner has to be thin enough to fit inside a glove with the glove still closing. Forty-five grams for the pair is thin; an unpublished weight is a guess.
• 3. The size run. Liner fit is the whole game, and a two-size product cannot fit most hands the way a five-size one can.
• 4. Touchscreen compatibility. Not a warmth feature, a getting-used feature. The commonest moment a glove comes off is to use a phone.
• 5. Published care. A liner is worn against the skin all day and needs washing far more often than a glove.

The three, compared

Three liners, three different amounts of disclosure, and no warranty term anywhere - which for a twenty-dollar item worn daily is reasonable enough. The row that decides the ranking is the first one: only Minus33 tells you what is actually in the glove.

The picks

Minus33 Lightweight Wool Glove Liners

The pick, on disclosure and on fiber. Minus33 publishes 85 percent merino wool, 10 percent stretch nylon and 5 percent elastic, sourced from Australia, at 1.6 oz (45 g) the pair, in five sizes from XS to XL, as style 3600.

The fiber mix is the right one for the job. Pure merino is warm when damp and pleasant on skin but stretches out and wears through; the nylon and elastic are what keep a thin liner holding its shape over a season of being pulled on and off with cold fingers.

Five sizes matters more here than on almost any other garment, because a liner has to be thin inside something else. Minus33 also publishes the care instructions - machine wash cold, lie flat to dry - which you will use, because a liner worn against the skin all day needs washing far more often than the glove over it.

Honest cons. No touchscreen compatibility published, so the glove still comes off for a phone - which is the single most common reason a liner gets left at home. No warranty term published. Thin merino wears at the fingertips before anything else fails. And it is a layer, not a glove: on its own, below freezing, it is cold.

Smartwool Liner Glove

The one that gets worn, because of the feature Smartwool publishes and the others do not: a touchscreen-compatible thumb and index finger. The moment a glove comes off on a mountain is almost always a phone moment - a map, a photo, a text about where to meet - and a liner that handles that is a liner that stays on.

Smartwool publishes a merino wool and polyester blend for temperature regulation and moisture management, in four unisex sizes, worn alone or under another glove or mitten.

Honest cons. No fiber percentages are published, so there is no way to compare its merino content with the Minus33’s 85 percent - and on a page ranked on published fiber, that is why it is second rather than first. No weight is published either. It is the dearest liner here at a published $28, and no warranty term is published.

Seirus Deluxe Thermax Glove Liner, and why it carries the skip

The synthetic, and a sensible purchase for two specific people: anyone who finds wool itchy against the skin, and anyone who will wash a liner after every outing - Thermax dries faster than merino between days.

Seirus publishes a thin, cut-and-sewn, form-fitting construction rather than a loose knit, which is the right shape for something worn inside a glove, at a published $19.99.

It carries the skip because of the size run. Two unisex sizes - SM/MD and LG/XL - is the coarsest fit on this page, and a liner that is a little too thick or a little too big inside a fitted ski glove compresses the hand and makes it colder, which is the failure mode this whole page is built around. Add no published fiber percentages, no weight and no warranty, and it is third on published information as well as on fit.

Getting the warmth you paid for

• Size the glove for the liner, not the other way round. If you already own gloves that fit, the liner belongs in the mitten or on the days you wear the roomier pair.
• Put it on before your hands are cold. A liner traps heat; it does not generate any. On a cold morning that is a parking-lot job.
• Use it as the glove-off layer. Boot buckles, lift pass, sunscreen, a child’s zipper - all faster with a liner on than with bare hands, and that is half the value.
• Wash it far more often than the glove. It is a base layer for your hand. The glove care page covers drying the shell properly.
• Carry a dry spare liner, not a spare glove. Far cheaper, far smaller in a pocket, and it rescues the afternoon the same way.

Where a liner sits in the cold-hands order

A liner is a cheap step, not a first step. In order of what actually fixes cold hands:

• 1. Dry gloves. A wet glove is the commonest cause of a cold hand and no layer fixes it - the diagnosis page covers the rest.
• 2. A glove that is not too tight. Compression beats insulation every time, in the wrong direction.
• 3. A warmer core. A cold body shuts down the fingers first - a better mid layer frequently fixes hands.
• 4. A liner, or a mitten instead of a glove. Twenty dollars against a hundred - the mittens roundup.
• 5. Heat. Only once the four above are sorted - rechargeable warmers or heated gloves.