THE NORTH FACE Women's Thermoball Traction Mule V (Style TXXV)

In this review of the Thermoball Traction Mule V, the bottom line is simple: these are best-in-class slip-on winter shoes for anyone who wants easy warmth and casual outdoor utility. The reviewer found them especially suited to base camp, apres-ski downtime, or quick errands thanks to the combination of ThermoBall Eco insulation and a cushioned, fleece-lined collar that keeps toes warm without heavy bulk. The collapsible heel and stretchy side panels make them fast to put on, while the rubber outsole provides reassuring grip on slick surfaces.

Key Features

• ThermoBall Eco insulation: Provides lightweight, compressible warmth that holds up even in damp conditions so feet stay toasty when temperatures drop.
• Ripstop recycled upper: The 100% recycled polyester upper with a non-PFC DWR finish sheds light moisture and snow to keep the interior drier during short outdoor use.
• Oso fleece-lined collar: Adds immediate comfort around the ankle and a cozy interior feel for lounging at camp or wearing around the house.
• Collapsible heel and stretchy panels: Allow quick slip-in and removal while maintaining a snug fit when worn as a mule.
• Grippy rubber outsole: A traction-focused sole made with up to 20% recycled rubber that performs on icy walkways and wet decks.
• Sustainable construction: Multiple recycled materials reduce environmental impact while delivering durable performance.

Who It's For

These mules are ideal for outdoor enthusiasts who need a warm, easy-to-wear shoe for base camp, cabin life, apres-ski, or short errands in chilly weather. They suit people who prioritize comfort and warmth over rigid support and who want a shoe that slips on quickly between activities.

They are less suitable for long walks, technical hiking, or heavy snow conditions where a full-coverage boot and stronger ankle support are needed. People who require a very precise fit should note that some customers report variation in fit and may prefer trying a pair on with the socks they intend to wear.

Pros & Cons

Pros

• Warm, compressible ThermoBall Eco insulation that retains heat even when damp.
• Comfortable fleece collar and cushioned footbed for all-day lounging.
• Durable, water-resistant ripstop upper with a clean, versatile look.
• Reliable traction on slick surfaces thanks to a rubber outsole with recycled content.

Cons

• Fit can vary; some wearers find them tight without socks while others report easy slip-on fit.
• Not intended for extended hikes or deep snow where a full boot is required.

Specifications

Product type	Insulated slip-on mule
Insulation	ThermoBall Eco (100% recycled polyester)
Upper material	100% recycled polyester ripstop with non-PFC DWR
Collar lining	Oso fleece
Outsole	High-traction rubber (up to 20% recycled rubber)
Closure	Collapsible heel with stretchy side panels (slip-on)

Our Verdict

The Thermoball Traction Mule V is a practical, well-made winter slip-on that delivers dependable warmth, comfortable cushioning, and sensible traction for casual outdoor use. It represents good value for anyone seeking a cozy, low-effort shoe for base camp, apres-ski, or quick outdoor tasks, though those needing firm support or deep-snow protection should choose a full boot instead.

Frequently Asked Questions

Are these shoes waterproof?
They are water-resistant with a DWR finish and shed light moisture and snow, but they are not fully waterproof for prolonged wet exposure.

Can I wear them without socks?
Many users enjoy them sockless thanks to the fleece collar, but fit varies and some people find a thin sock improves comfort and sizing.

Do they offer good traction on ice?
The rubber outsole provides steady traction on slick decks and icy walkways, but extreme ice conditions still require specialized footwear.