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Base Camp ThermoBall Mule
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Base Camp ThermoBall Mule—warmth and comfort for winter lounging
What Our Gearhead® Experts Are Saying:
“I love how the Base Camp ThermoBall Mule blends rugged outdoor durability with plush comfort for winter downtime. The THERMOBALL™ insulation keeps my feet toasty even when it’s damp out, and the Vibram® outsole ensures steady steps on slick floors.”
Whether you’re relaxing at the cabin or dashing out to grab the mail, the Base Camp ThermoBall Mule is your go-to winter slip-on for comfort and style. Made with 100% recycled ripstop and featuring a non-PFC durable water-repellent finish, this mule repels light moisture and stands up to winter’s demands. The THERMOBALL™ insulation inside offers the loft, compressibility, and reliable warmth of down—minus the bulk—so your feet stay cozy even in chilly, damp conditions.
With a non-marking Vibram® XS Trek outsole, you’ll have excellent traction indoors and out. It’s the perfect combination of warmth and grip that brings a little luxury to your winter adventures—wherever they may take you.
Details
- Slip-on winter mule for cozy lounging and quick trips
- THERMOBALL™ 100% recycled insulation retains warmth even when wet
- Water-resistant 100% recycled P.E.T. ripstop upper with non-PFC DWR finish
- Non-marking Vibram® XS Trek rubber outsole for superior grip and durability
- Lightweight and packable design—great for travel or cabin weekends
- Part of the classic Base Camp Collection for rugged TNF™ DNA
- Item #TNFZEFR
- Responsible Collection
- Recycled/Repurposed
- Upper Material
- [face fabric] 100% recycled polyester ripstop, PFC-free DWR finish, [insulation] THERMOBALL (100% recycled polyester)
- Closure
- slip-on
- Midsole
- PU
- Sole
- Vibram XS Trek (rubber)
- Claimed Weight
- 11.29oz
- Activity
- casual
- Manufacturer Warranty
- limited 1 year

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