Do they slip down into my shoe?

No. There's a small knitted tab at the back of the heel that catches on the edge of your shoe, so the sock stays where you put it. It's the same tab that keeps your heel from rubbing — which is what causes blisters in the first place.

Will they fit my feet?

If you wear anything from a US 5 to a US 11, yes. The knit stretches across that whole range and holds its shape once it's on. It isn't a compromise size — it's a fabric that adapts.

Do they slide down my leg?

No. The elastane runs through the entire sock rather than sitting only in the cuff, so they hold without leaving a mark on your leg.

What are they made of?

75% cotton, 20% polyamide, 5% elastane. The cotton is what you feel, the polyamide is what keeps them from going baggy, the elastane is what makes one size work.

How should I wash them?

Machine wash at 40 °C maximum. Skip the tumble dryer, the dry cleaning and the bleach — that shortens a cotton sock's life far more than wearing it does.

I want to give them as a gift but I don't know their shoe size.

That's the easiest case. One size covers US 5 to 11, so all you have to pick are patterns you think they'll like. Gift boxes arrive ready to hand over, with no price on them.

How long does shipping take?

Orders ship within one business day. Delivery takes 2 to 5 business days in the US and Canada, and it's free over $40.

What if they're not for me?

Send them back within 30 days and we'll refund you. Unworn pairs only — but a gift box you opened and changed your mind about is fine.

Apple Pay

Grumpy cat cotton socks gift box pack of 5

4,910192 reviews

Never slides down
No rubbing, no blisters
Holds shape wash after wash

Color

White

Black

Gray

Gift Box 3 Pairs

One Size

35-43

Choose your socks

Color: White

Add to cart

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Woke up on the wrong side of the bed? With our Grumpy Cat Cotton Socks, you've got the best way to let everyone know about your bad mood.

Our cotton socks fit every shoe size. The stretchy fabric and snug ribbing give our cotton socks a comfortable hold around the ankle. No more pulling your socks up every five minutes!

What makes our cotton socks different?

Material: 75% cotton, 20% polyamide, 5% elastane
Stretch fit, comfortable and breathable
Machine wash at 40 °C maximum
Not recommended: tumble dryer, dry cleaning or bleach

Free shipping on orders over $40 across the US and Canada. Orders placed before 2pm ship the same business day, and most arrive in 2–5 business days. You'll get a tracking link by email as soon as your parcel leaves our warehouse.

Changed your mind? You have 30 days to send them back, unworn and in their original packaging, for a full refund or an exchange. Just reply to your order confirmation and we'll take it from there — no forms, no questions.

Still comfortable at 11pm

Most socks give up somewhere between lunch and the walk home. These don't. The same pair handles the commute, the gym bag and the couch — without a single adjustment along the way.

Breathable cotton that survives a 12-hour day

Cuff stays put through stairs, desks and commutes

Same shape after the gym as before it

Office

Commute

Birthdays

Gym

Travel

Weekend

At home

Honest customer reviews

Verified

Ordered three times, no problem

I've ordered from Nuum three times now and delivery has been fast every single time. The quality holds up wash after wash.

Bill, 7 hours ago

Verified

They actually stay up

I've tried a lot of brands and these are the only ones that don't slide down into my shoe by lunchtime. The tab really works.

Clarence, 15 hours ago

Verified

No sizing headache

Bought a gift box without knowing their shoe size and it fit perfectly. That alone makes it my go-to present now.

Jim, 17 hours ago

Verified

Soft, and they stay soft

The cotton feels good on day one and still feels good after twenty washes. No sagging at the ankle either.

James, 17 hours ago

Verified

No more blisters

I walk a lot for work and the heel tab has genuinely stopped the rubbing I used to get. Already ordered three more pairs.

Tom, 1 day ago

Verified

Great quality, want more patterns

Fit and feel are spot on. Only reason it's not five stars is that I'd like even more patterns to pick from.

Marcus, 2 days ago

Verified

My husband won't wear anything else

Bought these for my husband and he hasn't touched his old socks since. Comfortable, breathable, and he likes the patterns.

Sarah, 2 days ago

Verified

Worth every penny

No bunching at the toe, no sliding at the heel. For the price per pair, I don't know why anyone buys supermarket socks.

Emma, 3 days ago

Rated 4.8 out of 5 based on 10,516 reviews. Showing our 4 and 5 star reviews.

Trustpilot

Grumpy Cat Cotton Socks

Still comfortable at 11pm

What they're made of

Combed cotton, not just cotton

No more heel rub

5% elastane, exactly where it counts

One size. Every foot.

What you're actually paying for

Questions, answered

Honest customer reviews