THE NORTH FACE Men's Thermoball Traction Mule V - Insulated Winter out

In this review the Thermoball Traction Mule V is assessed as a practical, insulated slip-on for cold-weather casual wear and light outdoor chores. The shoe's single biggest strength is reliable warmth from ThermoBall Eco insulation combined with a soft Oso fleece-lined collar that makes them comfortable for basecamp downtime, quick walks to the mailbox, or campsite use. They are not a technical mountaineering boot but excel as an easy-to-wear winter shoe that handles wet, chilly conditions while being simple to slip on and off.

Key Features

• Slip-in comfort: The collapsible heel and stretchy side panels let users get the shoe on quickly while the Oso fleece collar cushions the ankle for all-day low-effort wear.
• Thermal insulation: ThermoBall Eco insulation made from 100% recycled polyester retains warmth even when damp, keeping feet comfortable in cold, wet conditions.
• Water-resistant upper: A durable ripstop upper made from 100% recycled polyester with a non-PFC DWR finish repels light moisture and snow to help keep feet dry.
• Grippy traction: A rubber outsole with up to 20% recycled rubber provides steadier footing on slick decks, icy walkways, and cold cabin floors.
• Sustainable materials: The shoe incorporates recycled polyester insulation and recycled rubber content in the outsole, reducing environmental impact compared with virgin materials.

Who It's For

The Thermoball Traction Mule V suits men who want a warm, low-effort winter slip-on for around-town tasks, campsite chores, or cabin life. It works well for people who split time between indoor comfort and short outdoor stints in snow or slush and value easy on-and-off wear and dependable insulation.

Those seeking a true waterproof hiking shoe, a performance winter boot for steep terrain, or a narrow race-fit slipper should look elsewhere; some customers report a slightly tight or small fit in certain sizes, and the mule design is not meant for extended hiking or technical winter use.

Pros & Cons

Pros

• Warm, insulated feel from ThermoBall Eco even in damp conditions.
• Comfortable Oso fleece-lined collar and cushioned slip-in design for easy wear.
• Durable, water-resistant ripstop upper with non-PFC DWR for light moisture protection.
• Confident traction from a rubber outsole with recycled rubber content.

Cons

• Not fully waterproof and not intended for extended wet hiking; best for light snow and slush.
• Fit can run small or snug for some wearers, making sizing up advisable in some cases.

Specifications

Brand	THE NORTH FACE
Model	Thermoball Traction Mule V
Insulation	100% recycled polyester ThermoBall Eco
Upper	Ripstop 100% recycled polyester with non-PFC DWR
Collar	Oso fleece-lined
Outsole	Rubber with up to 20% recycled rubber
Design	Slip-on mule with collapsible heel and stretchy side panels

Our Verdict

The Thermoball Traction Mule V is a strong choice for anyone who wants a warm, easy slip-on winter shoe that performs well in light snow and damp conditions. It pairs good insulation, a comfortable fleece collar, and practical water-resistant construction with sustainable materials, offering solid value for daily cold-weather wear and short outdoor tasks.

Frequently Asked Questions

Are these fully waterproof?
They are water-resistant with a DWR-treated ripstop upper but not fully waterproof; they repel light moisture and snow rather than stand up to prolonged immersion.

Do they run true to size?
Fit can vary; while many users find the fit fine, others report they run small or snug, so consider trying a half size up if you are between sizes or wear thicker socks.

Can I use these for camping?
Yes, they are well suited for campsite use and brief outdoor tasks where warmth and slip-on convenience matter, but avoid long wet hikes or technical terrain.