Calm

$49.99

Size US 5 (EU 37) US 6 (EU 38) US 6.5 (EU 39) US 7 (EU 40) US 8 (EU 41) US 8.5 (EU 42) US 9.5 (EU 43) US 10 (EU 44)

Size guide

Not sure which size? Measure your foot below — it takes two minutes.

Sizes on this product are EU whole sizes. Your most reliable reference is your foot length — measure it below.

Foot length	US Men*	US Women*	EU	UK
8.5 in	3.5	5	35	2.5
8.8 in	4	5.5	36	3
9.1 in	5	6.5	37	4
9.3 in	6	7.5	38	5
9.6 in	6.5	8	39	5.5
9.8 in	7	8.5	40	6
10.1 in	8	9.5	41	7
10.4 in	8.5	10	42	7.5
10.6 in	9.5	11	43	8.5
10.9 in	10	11.5	44	9
11.1 in	11	12.5	45	10
11.4 in	11.5	13	46	10.5
11.7 in	12.5	14	47	11.5

All sizes are EU whole sizes — no half sizes. *US conversions are approximate: a whole EU size often falls between two US sizes. If your US size or foot length lands between two rows, choose the larger EU size.

How to measure your foot

Place a sheet of paper on the floor against a wall. Stand on it barefoot, heel touching the wall.
Mark the tip of your longest toe on the paper with a pencil.
Measure the distance from the edge of the paper (wall side) to your mark.
Compare your measurement with the Foot length column above and read your size across.

Tip: measure at the end of the day — feet swell slightly — and use your larger foot.

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Free shipping — delivered in 10–20 business days

Cozy, closed-toe recovery in mule form. The Calm mule wraps your feet in soft, lightweight foam for a barely-there feel, with an easy slip-on design that's perfect for downtime, quick errands, or winding down after a long day. Simple to rinse and always ready when you are.

It's the pair you reach for after the workout, around the house, or on the ten-minute walk you didn't plan on taking. Nike builds for the street as much as the track, and it shows in the proportions: nothing here looks like gym equipment.

Fit & sizing

Sizes run from US 5 (EU 37) to US 10 (EU 44), listed in US with the EU equivalent in brackets. Nike and Jordan run true to size for most people, a touch narrow for wide feet. If you’re between sizes, size up. The size guide on this page converts foot length to US Men’s, US Women’s, EU and UK.

Shipping & returns

Free shipping — delivered in 10–20 business days.
30 days to change your mind, and you never ship anything back: email us your order number and a few photos, and if it’s approved we refund you and the pair stays with you.
Questions before you buy? Ask us — we answer within one business day.