Skip to product information

OUTDOOR SEASON SALE

ThermaBoots™ Fleeced & Waterproof

ThermaBoots™ Fleeced & Waterproof

✔️ 100% Waterproof Protection

✔️ Warm Fleece Lining

✔️ Lightweight Comfort + Non-Slip Sole

🔥 328 Sold in last 24 hours
×

ThermaBoots Size Guide

📦 Product Sizing: ThermaBoots are labeled in Men's US sizing. Women should refer to the conversion chart below.
EU Size US Men's US Women's Foot Length (cm) Inner Length (cm)
EU385723.424.4
EU385.57.523.724.7
EU39682425
EU407924.625.6
EU417.59.525.226.2
EU428.510.525.826.8
EU4391126.427.4
EU4410122728
EU45111327.628.6
EU461228.229.2
EU471328.829.8
EU481429.430.4
How to measure: Measure your foot length in cm and match it to the chart above. If you're unsure about your size, go for your regular size.

Women's sizing: Our boots are labeled in men's sizing. Women typically order 1.5-2 sizes down from their usual women's size (e.g., Women's US 8 = Men's US 6).
BUNDLE & SAVE
 
Black
Black
Gray
Gray
Tan
Tan
 

NEW ARRIVAL

ThermaBoots 2.0

Looking for boots you can wear all year round?

Fleece-Free Lightweight 100% Waterproof
Shop ThermaBoots 2.0 →
  • Apple Pay
  • Bancontact
  • Diners Club
  • Google Pay
  • iDEAL Wero
  • Maestro
  • Mastercard
  • Shop Pay
  • Union Pay
  • Visa

We ship anywhere in the US & Canada on every order.

Orders are dispatched within 1–5 working days, depending on the current order volume. We are seeing high demand right now, but we work to send every order out on time, with the care and speed our customers deserve.

After dispatch, delivery is handled by our partners and usually takes 3–5 working days to arrive.

A confirmation email with the tracking info is sent as soon as your order ships.

30 Day Money Back Guarantee

We stand behind the quality of our products at ThermaFits - and we want you to feel confident in your purchase. That’s why we offer a 30-day money-back guarantee on all orders.

If you’re not completely satisfied, just contact us within 30 days and we’ll start the return process. Order must be returned for a refund.

Your satisfaction is our priority.

View full details

Featured in

Press logo
Press logo
ThermaBoots™ Fleeced & Waterproof

Built for the Cold, Made to Keep You Going 🔥

Done with freezing, soaked feet wrecking your day?

Say hello to ThermaBootswinter boots engineered for genuine warmth, solid protection and all-day comfort.

Fully Waterproof Shield
Sealed from top to sole, so your feet stay bone dry through rain, snow and slush.

Cozy Fleece Interior
A thick, plush lining wraps your feet in warmth all day — socks optional.

Light Yet Grippy
All-day wear without the weight, on a non-slip sole that holds on wet and icy ground.

One Design, Everyone
Made for men and women who don't let the forecast decide their plans.

Reasons You'll Love Them...

  • All-Day Warmth

    A soft fleece interior holds the heat in so your feet stay cozy even when the temperature drops. Made for frosty mornings, long strolls and winter commutes — warm feet, zero trade-offs.

  • Slip-On Convenience

    The side zipper has you ready to leave in about three seconds. Nothing to bend down for, nothing to tie — ideal for hurried mornings and quick trips out.

  • Ankle Support & Stability

    Cut to sit above the ankle for extra hold on rough or uneven surfaces. A great fit for anyone with fragile ankles — or anyone who simply wants a steadier step.

  • Unisex Design For Everyone

    Made for men and women alike who will not give up comfort for style. A single pair that carries you through the workday, the walk and the weekend.

Happy customers holding their fleece-lined waterproof boots

Why Put Up With Cold, Soaked Feet When You Don’t Have To?

Ordinary boots simply give up on you once winter weather arrives.

ThermaBoots hand you genuine protection and genuine comfort – without a single trade-off. Move through your whole day with confidence, whatever the conditions outside.

  • Thick fleece lining that keeps your feet warm even with no socks on
  • Non-slip sole built for traction on icy sidewalks and soaked surfaces
  • Lightweight build so your legs never feel worn out
  • Easy 3-second slip-on thanks to the side zip – zero laces to deal with
  • Ankle coverage that adds stability across uneven ground
  • Offered in 3 colors – Black, Gray and Tan, whichever suits your look
  • Made for men and women – one unisex design for everybody
  • Durable high-quality fabric made to hold up season after season

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

BUY 1 PAIR GET ANOTHER FOR FREE!

30 Day Money Back Guarantee

30-Day Risk Free Trial

You're covered by a 30-day money-back guarantee. Not satisfied? Just contact us and we'll issue a full refund if you're not completely happy. You have nothing to lose!

Testimonials

  • Already buying a second pair!

    Never imagined slip-on boots could be this warm and this waterproof. My feet stay cozy the whole day even without heavy socks, and rain or puddles simply don't get through.

    Karen

  • Worth every cent

    I had no big expectations, but these boots really won me over. The first rainy day I wore them my feet came home completely dry — ideal for those cold, damp mornings.

    Andy

  • Just as described

    These boots impressed me. Warm, dry feet with none of the bulk or extra weight. Great fit, sharp look, and they deliver exactly what is promised — perfect for outdoor work and walking the dog.

    Steve

Frequently Asked Questions

Are they true to size?
Yes! ThermaBoots run true to size. Just check our sizing chart and pick your usual UK shoe size for a perfect fit.
Where can I wear ThermaBoots?
Anywhere! Dog walks, the commute, the office, hiking, errands, outdoor work, gardening and casual days out. They're built to be your everyday winter boot for any occasion – waterproof protection with a look that fits in everywhere.
Will you restock sold out sizes?
We restock popular sizes as fast as we can, but demand is high and availability can't be guaranteed. If your size is sold out, check back regularly or sign up for restock notifications on the product page.
Are they really 100% waterproof?
Absolutely. ThermaBoots use a fully sealed construction that keeps your feet completely dry in rain, snow, puddles and slush. Walk with confidence in any wet conditions.
Can I wear them without socks?
Yes! Plenty of customers wear ThermaBoots sockless thanks to the thick, plush fleece lining. The inside is so soft and comfortable that socks are entirely optional.
Are they suitable for both men and women?
Yes! ThermaBoots have a unisex design that works just as well for men and women. Simply pick your size from our sizing chart.
What materials are ThermaBoots made of?
Our boots pair a luxurious, ultra-warm thermal fleece lining for comfort with a 100% waterproof, high-tech hydro-repellent textile shell that wipes clean in seconds. It all sits on a rugged, all-terrain grip sole for maximum traction and durability.
How do I put them on?
ThermaBoots have an easy slip-on design with a side zip for a secure fit. Slide your foot in, zip up the side and you're ready in 3 seconds. No bending down to tie laces.
Are they heavy?
Not at all! Even with full waterproofing and a fleece lining, ThermaBoots are surprisingly lightweight. They won't tire your legs out, even after a full day of wear.
Will they keep my feet warm in winter?
Yes! The thick fleece lining is made to keep your feet warm and cosy when temperatures drop. Perfect for winter walks, commutes and outdoor activities.
What colours are available?
ThermaBoots come in three stylish colours: Black, Grey and Tan. Pick the one that suits your style and wardrobe best.
Are they good for icy or slippery surfaces?
Yes! ThermaBoots have a non-slip sole that grips well on wet pavements, icy surfaces and slippery ground. Walk confidently in winter conditions.
Are free gloves included with my order?
Free gloves come only with the Family Winter Pack (4+ pairs). They are not included with standard orders. Add 4 or more pairs to your cart to unlock this bonus gift
Can I machine wash them?
We recommend spot cleaning with a damp cloth for the best results. For tougher marks, use a soft brush with mild soap and water, then air dry. Avoid machine washing so the waterproof seal and fleece lining stay in good condition.
Do they provide ankle support?
Yes! ThermaBoots are designed with ankle coverage that adds extra support and stability, making them ideal for anyone with weak ankles or who wants more confidence on uneven ground.
What if they don't fit or I don't like them?
No worries! We offer a 30-day money-back guarantee. Just email us at thermafitsboots@gmail.com and we'll sort out a return or exchange. Hassle-free and simple.
Customer review photo by Olivia Verified

Olivia Verified

★★★★★

Fits like a glove. Really comfortable.

Customer review photo by Mia Verified

Mia Verified

★★★★★

Excellent value for the money. Very happy.

Customer review photo by Olivia Verified

Olivia Verified

★★★★★

The best boots I've had, and I've owned plenty.

Customer review photo by Chloe Verified

Chloe Verified

★★★★★

The fleece lining is so soft and cozy. Love them.

Customer review photo by Lily Verified

Lily Verified

★★★★★

Next to the other pairs I've tried, these come out on top.

Customer review photo by Lily Verified

Lily Verified

★★★★★

Really impressed with these.

Customer review photo by Ryan Verified

Ryan Verified

★★★★☆

Unlike most waterproof boots, these actually look good.

Customer review photo by Sophie Verified

Sophie Verified

★★★★★

I wear them hiking. Comfy and supportive.

Customer review photo by Evie Verified

Evie Verified

★★★★★

Sleek look. Really pleased with how they turned out.

Customer review photo by Daniel Verified

Daniel Verified

★★★★★

They feel built to go the distance.

Customer review photo by Adam Verified

Adam Verified

★★★★☆

Great timing picking these up before the cold hit.

Customer review photo by Lily Verified

Lily Verified

★★★★☆

The price is more than fair for the quality; had a small mix-up with my address and support sorted it out fast!

Customer review photo by Liam Verified

Liam Verified

★★★★★

Everything I was hoping for. Highly recommended.

Customer review photo by Kate Verified

Kate Verified

★★★★★

Hard to believe the quality at this price.

Customer review photo by Mia Verified

Mia Verified

★★★★☆

The non-slip claim isn't just marketing. It genuinely works.

Customer review photo by Zoe Verified

Zoe Verified

★★★★★

My feet stay toasty all day. Ideal for winter.

Customer review photo by Jack Verified

Jack Verified

★★★★★

Far comfier than I expected. I wear them every day now.

Customer review photo by Leo Verified

Leo Verified

★★★★★

They feel really solid. Should last for years.

Customer review photo by Thomas Verified

Thomas Verified

★★★★☆

The best value boots I've come across. Excellent.

Customer review photo by Emily Verified

Emily Verified

★★★★★

Supportive without being stiff. Just the right balance.