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Person wearing a blue and white striped shirt with a brown skirt on a white background

Michelle Heeled Mule Black Nappa

A versatile, slip-on mule with a stacked wood heel.

Regular price $295

Total pairs made this season: 24

Size

Crafted by hand in Peru

LWG certified + traceable leather

Free shipping on orders of $250+

Leather is a natural material and will last for many years with proper care. It is normal for leather shoes to be snug at first, as the leather will give over time.

  • LWG-certified nappa leather upper
  • Vegetable-tanned kidskin lining
  • Cow leather sole

Our Black Nappa leather comes from a tannery that is Leather Working Group (LWG) Silver certified and 100% traceable.  The LWG is a non-profit organization that sets international standards for environmental, social, and safety performance in the leather industry.

Heel height: 45 mm

This style fits true to size. If you are a half size, we recommend sizing up. Narrow feet may want to consider sizing down.

Shipping within the US is free on orders of $250 or more. We offer free domestic exchanges of unworn and unused merchandise within 14 days of delivery. Read Full policy



The shoemakers

Pedro & Marta

An atelier run by a husband and wife team that makes some of our most popular styles.


Customers rave about these heeled mules, describing them as "comfortable right out of the box" with "buttery soft leather." The versatile design pairs with jeans, dresses, and work attire. Most find sizing true to fit, though some recommend sizing down. A few noted initial break-in needed. One customer reported sole stitching issues after one year.

  • 5 stars: 106 (91%)
  • 4 stars: 9 (8%)
  • 3 stars: 1 (1%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
J
Jaqueline N.

These clogs are a go to, love them. I have wide feet so did size up, that may not have been needed but I do like the fit

S
Sandra D.

LOVE these shoes…sized perfectly & comfortable right out of the box

N
Nanette S.
Love!

I absolutely love fortress shoes. The quality, the style, the comfort level… 100% fabulous on all! These are exceptionally comfortable and so cute on. Absolutely love.

A
Anonymous
Smooth, Comfy, & Stylish

I slipped them on right out the box and they fit like a glove. So comfortable & versatile. Great for work, casual day out, or a night out on the town.

A
Anonymous
Comfortable from the first wear

Love the quality of the leather, the comfort, and the versatility of these shoes. I have problem feet so that’s saying something! Highly recommend! Would love more colors.

K
Katie S.
The perfect everyday shoe

The Michelle is the perfect combo of style and practicality when it comes to dressing for the winter/ spring transition. It has a bit of a heel but is super comfortable and easy to walk in. I wear mine with wide legs as well as straight jeans and both look fantastic. I’m a size ten (40), but always size up to a 41 with Fortress.

J
Jessica F.
Review

Love them . Would buy again

M
Meagan V.
Feel like they were made just for me!

I was a little worried these would be too small, but after the first wear I could already tell that over time they will mold to my feet perfectly and last a long time. They are beautifully constructed and I absolutely adore them.

A
Anonymous
Love!

Loved these more than I even thought I would/ very comfortable and perfect for work

B
Briana M.
Beautiful and Comfortable

These shoes are incredibly comfortable, even on the first wear. They are beautiful and very well made.

A
Amanda K.
Love

Great fit, stylish, easy to pair with outfits.

A
Anonymous
Amazing quality

These are my new favorites! Super stylish and comfortable, I’m wearing them to work and for a night out.

S
Sarah M.
Cute & Comfortable Every Day Shoe

I am in love with this shoe! They are comfortable right out of the box. The heel is the perfect height and the leather is so soft and supple. I find myself wearing these with both casual and more dressy outfits - they work with either! I want these in every color.

A
Anonymous
She loves these shoes

I bought these for my wife. Not only does she love the style, the quality is great and most importantly they are very comfortable.

K
Kristine S.
My New Favorite Shoes

I love this shoe! They are so comfortable that I forget they have a little lift.

A
Anonymous
Beautiful Shoe!

These are gorgeous shoes! Had to exchange for a smaller size as these ran a tad larger than other mules I have, but absolutely love them!

J
Jennifer M.
Beautiful and comfortable

These shoes look great with jeans or a dress. Very comfortable, I have received compliments every time I have worn them.

A
Alana

Wow!!

J
Jere

I loved the shoes very comfortable I could walk in these all day

A
Anonymous
Love these!

Super comfy, and so many compliments on these!

A
Anonymous
Love these!

They look fantastic & are comfortable. I may get another pair in a different color

A
Anonymous
Stylish

Shoes are very stylish and go with all my outfits

A
Anonymous
Versatile

These look good with everything!

J
Julie

Well made, I will be ordering more from this company

A
Anonymous
Comfort + Style

I loved the easy slide on vibe of these shoes, and they were super comfortable while quickly upgrading my outfit. These are definitely a wardrobe staple!

A
Anonymous
Cute and so soft

I love Fortress’s soft leather and usually worry about buying a mule style shoe because my foot never seems to fit in its usual size and hangs off the back. But these were perfect and go with just about any outfit.

K
Katie C.
Love!

It’s a comfortable, versatile pair of shoes that elevates each outfit.

A
Anonymous
So classic and cute

I absolutely love these mules. They are perfect with jeans, skirts or dresses. I recommend sizing down. I or if I ally ordered a 39 and needed to reorder a 38. I am an 8.5 regular width.

A
Andria R.
Versatile and Stylish

This is my second purchase from FOI and I love them! The Michelle shoes are stylish, comfortable, and as always, very well made. On the small side of TTS

A
Andria R.
Versatile and Stylish

This is my second purchase from FOI and I love them! The Michelle shoes are stylish, comfortable, and as always, very well made. On the small side of TTS

A
Andria R.
Versatile and Stylish

This is my second purchase from FOI and I love them! The Michelle shoes are stylish, comfortable, and as always, very well made. On the small side of TTS

A
Ana X.
Great shoes

These shoes are beautiful, very well made, and extremely comfortable. It’s like wearing slippers. They look good with pants and dresses.

A
Anonymous
Beautiful and well made

These are lovely and such high quality - I definitely recommend!