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Sums Reviews

4.9 Rating 1,518 Reviews
97 %
of reviewers recommend Sums
These socks are amazing. I ran a 20 mile mountain trail event in them. Running through streams and muddy fields and my feet stayed blister free. The socks dry off really quickly so you don't have the problem of wet feet for hours on end. I liked them so much I bought another couple of pairs for myself and sent some to my son.
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Posted 1 week ago
Couldn’t resist some of the Merino socks and I am so glad I did. Great thin socks with plenty of support. Need to buy a few more colours now
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Posted 1 week ago
Completely converted no other sock comes close for ultra running
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Posted 1 week ago
These socks are such a game changer when it comes to running. My feet are protected and comfortable when I wear Sums on my runs. I can bang out a 30k + in a pair of these no dramas. My only regret is that I didn’t start wearing them sooner. I’ve since bought them for my boyfriend and friends who run. Anything from 5k to marathon - Sums are the ones for your feet 💜
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Posted 1 week ago
The comfiest running socks ever! I love these so much, no blisters either :)
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Posted 1 week ago
Fun and high quality, would recommend!
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Posted 1 week ago
Great socks. Good fit, no blisters.
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Posted 1 week ago
I now proudly own 4 pairs of SUMS socks, I’ve been running “seriously” for around 18 months and got started on the running trend during covid, I've ran a couple of half marathons and next a marathon in a couple of weeks and I can confidently say I will be running in my amazing Lilac socks! Before finding SUMS I struggled with blisters on the ball of my foot - really painful ones and since loyally wearing your socks I can confirm no blisters, my feet are so comfy. Such a brilliant brand, my first pair of white all seasons are just about ready for recycling, just need to choose another colour to enjoy next! Would happily recommend runners your way to these fabulous socks! From the fast shipping, the recycling scheme, the Strava linking, the great communication and the restocks it’s 5 ⭐️’s from me!!
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Posted 1 week ago
I've used sums for a few years now, and now exclusively run and hike in these socks, I even used them for 5-a-aside my persistent blisters disappeared. They are great, no blisters, wet feet dry so quickly. I recommend them to everyone and anyone.
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Posted 1 week ago
The socks have been great to run in but they are very very tight & it has taken some getting used to.
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Posted 1 week ago
Great socks, very comfortable. These are second set purchased as first were great and built to last. No blisters after several half marathons.
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Posted 1 week ago
Used SUMs socks for the Springtide 50km Ultra and to be fair I didn’t think about my feet at all, they were great. No blisters and stayed comfortable the whole way through. Would definitely recommend.
Sums 5 star review on 2nd April 2026
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Posted 1 week ago
Saw Sums advertised on Instagram and thought they'd be a gimmick but the adverts came up a few more times and having often struggled with my feet whilst running i took the chance, instant game changer, complete comfort whilst running, they don't slip, the designs are great, 10/10 socks for the athlete (or portly lad) in your life
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Posted 1 week ago
Make your feet feel like you're running through clouds. Best running socks ive ever tried
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Posted 1 week ago
First time out over 30km. No hotspots. No blisters. No drama. Brilliant socks. I highly recommend the all seasons to anyone who loves running and even more so to those that don’t! Game changer.
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Posted 1 week ago
Adore these socks. I wear them for everything from the weekly 5km to regular ultra marathons. They fit snug to the mid foot but allow for toes to splay whilst running which means they don’t feel restrictive at all. My favourite socks are the All Seasons and the max cushioned.
Sums 5 star review on 1st April 2026
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Posted 1 week ago
Fantastic socks, can’t fault them!
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Posted 1 week ago
Brilliant! I love my Sums! I often get blisters but haven’t got one yet while wearing my Sums. I’ve bought them for my husband and sister-in-law who also rave about them. Loving the new colours available. Will definitely be getting more xx
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Posted 1 week ago
The best socks for me so far, I've struggled with blisters for any type of longish run, untill I got these. Did my first half marathon (Cambridge) in march and NO blisters, absolute bliss. Highly recommend, I ordered more straight away
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Posted 1 week ago
Incredible socks, perfect in every way, my new favorites.
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Posted 1 week ago
Sums is rated 4.9 based on 1,518 reviews