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Sums Reviews

4.9 Rating 1,774 Reviews
97 %
of reviewers recommend Sums
“These are just great socks that do everything they say they will. I was really sceptical but they really do work and I’d recommend them for everything from trail running to more traditional, multi -day hikes.”
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Posted 1 month ago
“As a runner and cyclist who puts her feet through a lot of stress and strain, and as someone who is a sock dopping pro, I buy a lot of socks and take my sock purchases quite serious. The performance, quality, fit and indeed height of cuff is very important to me. I am now at 4 pairs of the Sums All Seasons in White and 1 pair in Oatmeal, that's how much I like them! I would buy others if there were other white subtle and classy versions. ;)”
Sums 5 star review on 15th September 2026
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Posted 1 month ago
“Your socks are THE best and they last for miles!! I used to get blisters in my arches… not any more. I now have 3pairs, just had to retire my first pair, they lasted 19weeks of marathon training, the actual marathon and 3 months after. 👌 amazing quality! I also love that you can earn credit simply by running. Great idea!!”
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Posted 1 month ago
“Best running socks I have ever used! couldn’t recommend more and delighted I bought three pairs. Fit true to size, supper comfortable and excellent quality.”
Sums 5 star review on 12th September 2026
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Posted 1 month ago
“Excellent socks, I've now half a dozen pairs that I wear on rotation. Sums my go running sock, for training & racing.”
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Posted 1 month ago
“There are socks and then there socks that you hope will be different, will deliver something that you know youre feet are missing when you go out for a run but you just cant quite put your finger on what it is that is missing......and then Sums come into your life and the first time you put them on you go "yessss, ive found them". Im still not sure what it is that makes them give that "Yes" factor but they do and they do it in spades.”
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Posted 1 month ago
“I am 32 and have been hiking and running my entire life and these are the best socks I have worn! So comfortable and technical. SUMS is definitely my go-to from now on!”
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Posted 1 month ago
“Best socks for running in bar none. I must have around 15 pairs across the range.”
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Posted 1 month ago
“Great products, really pleased with the socks and hat!”
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Posted 1 month ago
“I can’t praise SUMS socks enough! I had many pairs and they’re incredibly comfortable and hard wearing, ran many races and never had a blisters or hot feet. They look awesome and I genuinely wouldn’t wear anything else!”
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Posted 2 months ago
“Very snug fit (I'm a 10.5 and bought L), zero problems so far, machines washed no problem.”
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Posted 2 months ago
“Bought my first pair of these socks after getting blisters on an ultra run. I really like the quality and feel of them, and so far I’ve been completely blister-free! 🙌 So, naturally, I had to purchase a few more 😂 And now they’ve brought out ankle socks… I couldn’t resist buying even more! 😂🧦 Really impressed with them and would definitely recommend! 👍”
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Posted 2 months ago
“I bought the all seasons socks for my half marathon training and love them. I’m usually bothered by blisters on longer runs but no blisters or discomfort after running 18km!”
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Posted 2 months ago
“Very comfy, breathable and lightweight”
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Posted 2 months ago
“These socks are top quality, super comfy, and I love the colours. I’ve already bought more pairs after my first batch.”
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Posted 2 months ago
“Quality material, can tell it will last a long time. Will be purchasing more.”
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Posted 2 months ago
“I got the new SUMS Quarter Crews in lilac and they’re honestly stunning! Super soft, supportive and really comfortable, with just the right amount of cushioning. I’ve recommended them to ALL my running pals because I genuinely love them. I also have the LoveTrails special editions as my trail socks and they’re a solid 10/10 too! 💙”
Sums 5 star review on 29th August 2026
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Posted 2 months ago
“My Hoka Mach 3’s always felt just a little bit tight, not with these bad boys! Surprisingly thin but super comfy. Great buy”
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Posted 2 months ago
“Perfect, can’t fault them!”
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Posted 2 months ago
“Could feel the difference straight away, amazing quality and performance, will 100% be buying more”
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Posted 2 months ago
Sums is rated 4.9 based on 1,774 reviews