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If your dogs are cold, you're doing it wrong.

Intuition Luxury Boot Liners

Step one for ski-boot comfort: get ’em fitted and punched. Step two: slip in a pair of aftermarket heat-moldable Intuition liners. They’ll ensure your feet are snug and add an impor­tant layer of warmth. 

Price $198

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Hotronic’s warmers have been the go-to in the U.S. for a ­decade, and the batteries in the S4 Universal have been updated for all-day use. They sit on the outside of your boots and attach to thin cords that run to heated footbed pads.

Price $259

Forty Below Fresh Tracks Overboot

You won’t win any style points (in fact, your buds will probably tease you nonstop), but these nylon-covered 4.7-­millimeter neoprene overboots from Forty Below will prevent precious heat from seeping out of the folds and cuffs in your shells.

Price $190

Smartwool PhD Ski Ultra Light Socks

Wear the thinnest ski socks possible—like these merino offerings from Smartwool. They’ll prevent you from packing your boot too tight and cutting off circulation. Better boot fit will also ensure more power gets transferred to your skis.    

Price $23

Sidas Volcano Heat Insoles

We like these boot heaters from French company Sidas because the footbeds are thin and supportive. The lithium-battery-powered heater also works with other Sidas insoles to keep your toes toasty no matter what you’re wearing. 

Price $65

Lenz Heat Sock 1.0

If your feet run cold and messing with insoles is out of the question, try heated socks instead. Lenz ­embedded warming pads and wires in a standard polyester-blend material, and the flexible batteries (which provide up to 14 hours of power) fold into the cuff. Temper­ature is controlled via smartphone app (Android and iOS).

Price $300