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Oneten Merino Long Sleeve Baselayer



Affordable merino baselayer not lacking in quality or performance

At every product is thoroughly tested for as long as it takes to get a proper insight into how well it works. Our reviewers are experienced cyclists that we trust to be objective. While we strive to ensure that opinions expressed are backed up by facts, reviews are by their nature an informed opinion, not a definitive verdict. We don't intentionally try to break anything (except locks) but we do try to look for weak points in any design. The overall score is not just an average of the other scores: it reflects both a product's function and value – with value determined by how a product compares with items of similar spec, quality, and price.

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Proving that merino baselayers don't need to cost a fortune, the excellent Oneten Merino Long Sleeve can currently be bought for just £27 from Chain Reaction Cycles, the company behind the clothing brand.

Previous Oneten products have reviewed well on, and this merino baselayer proved to be no exception.

Oneten Merino Long Sleeve Jersey - logo.jpg

It's made entirely from 185gsm (the weight of the fabric) merino wool with flatlocked seams throughout. I favour merino wool for baselayers because it's soft next to the skin and very insulating for cold rides. Its other great appeal is that it's naturally anti-bacterial and odour resistant, so it never stinks, and it's very breathable so you don't risk overheating.

> Check out our buyer's guide to baselayers

The fit, always important for a garment designed to sit close to the skin, is really good. It's available in five sizes from S to XXL which should cover most body shapes. Oneten recommends a hand wash or cold machine wash, but I had no issues putting it through a 30-degree machine wash.

Oneten Merino Long Sleeve Jersey - cuff.jpg

As the weather warms up it won't get as much use, but on cold mornings and throughout winter – apart from the very coldest rides – it provides about the right level of insulation when paired with a decent jersey or jacket. There's a short-sleeve version too, currently £24.99.


Affordable merino baselayer not lacking in quality or performance

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Make and model: Oneten Merino Long Sleeve Baselayer

Size tested: M

Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?

Oneten says: "Renowned for its exceptional properties, Merino wool is the ultimate in high performance fabrics. 100% natural, it has excellent insulation properties. Naturally high wicking and odour resistant, the Oneten Merino Baselayer is the perfect choice for athletes.

"Merino wool, with its high warmth to weight ratio and a natural breathability, helps to maintain your body temperature. Unlike other wools, Merino is itch-free and with fully flat locked seams, your comfort is ensured."

Tell us some more about the technical aspects of the product?

100% Merino wool, 185gsm

Natural antibacterial properties make your garment highly odour resistant

Naturally breathable, with excellent moisture wicking properties

Itch free, with fully flat locked seams

Helps maintain body temperature

Hand wash or gentle, cold machine wash recommended

Rate the product for quality of construction:
Rate the product for performance:
Rate the product for durability:
Rate the product for fit:
Rate the product for sizing:
Rate the product for comfort:
Rate the product for value:

This is where the Oneten baselayer really scores highly, merino often costs more than this.

How easy is the product to care for? How did it respond to being washed?

Easy if you follow the instructions. I didn't, but the baselayer has been just fine.

Tell us how the product performed overall when used for its designed purpose

Provides good warmth and keeps you dry and comfortable.

Tell us what you particularly liked about the product

Good performance at a good price.

Tell us what you particularly disliked about the product

Can't really find much to fault.

Did you enjoy using the product? Yes

Would you consider buying the product? Yes

Would you recommend the product to a friend? Yes

Use this box to explain your score

It's a good quality merino baselayer, and gets an extra mark for its affordable price.

Overall rating: 8/10

About the tester

Age: 31  Height: 180cm  Weight: 67kg

I usually ride:   My best bike is:

I've been riding for: 10-20 years  I ride: Every day  I would class myself as: Expert

I regularly do the following types of riding: road racing, time trialling, cyclo-cross, commuting, touring, mountain biking

David worked on the tech team from 2012-2020. Previously he was editor of and before that staff writer at RCUK. He's a seasoned cyclist of all disciplines, from road to mountain biking, touring to cyclo-cross, he only wishes he had time to ride them all. He's mildly competitive, though he'll never admit it, and is a frequent road racer but is too lazy to do really well. He currently resides in the Cotswolds, and you can now find him over on his own YouTube channel David Arthur - Just Ride Bikes

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