HikingHelly HansenMidlayer

Helly Hansen Daybreaker Block Microfleece review: softer, lighter, happier days out

An ultra-soft, brilliantly breathable fleece that's just as happy on breezy ridgelines as it is down the local.

By Adrian Wilson

✓  Recommended Helly Hansen Daybreaker Block Microfleece RRP £80 Weight 350g Material 100% polyester The good ✓  Outrageously soft feel
✓  Packs down small
✓  Wind-blocking panels
✓  Dries fast in drizzle
✓  Sleek, tidy cut
✓  Glove-friendly zips The not-so-good ✗  Pricier than budget alternatives
✗  Minimal adjustability at hem and cuffs Check price at Helly Hansen →

At a glance

Buy the Daybreaker Block at Helly Hansen →

Overview

Hailing from Norway's wild coastlines and storm-lashed peaks, Helly Hansen have been crafting outdoor gear since 1877. Originally outfitting sailors braving the North Sea, they've long since become a go-to for skiers, hikers and mountaineers — basically anyone who needs kit that stands up to foul weather and serious wear. Their heritage runs deep, but it's their relentless push for better, smarter kit that keeps them on our radar.

Enter the Daybreaker Block Microfleece — a 350g fleece layer aimed at pretty much everything you'd want to get up to outdoors in the UK. From breezy hill days to lazy afternoons nursing a pint, it's designed to be your most versatile grab-and-go layer. Built from 100% polyester with a noticeably tighter, smoother weave, it's lighter and slicker than your typical fleece — more next-to-skin comfort, less bulk.

At £80 RRP, it slots above budget staples but well shy of truly technical pieces. In many ways it's a sweet spot: more comfort and polish than entry-level fleeces, without the hardcore feel or price of dedicated alpine gear.

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How we tested

We've taken the Daybreaker Block just about everywhere. It first came out for a brisk 6°C ramble through the Chiltern Hills — layered over a simple T-shirt, tucked under a robust shell — proving instantly that it kept the chill off without ever feeling swampy. A few weeks later it joined us for a classic Brecon Beacons loop up Pen y Fan and across to Fan y Big, layered over a thin merino base. Even with the typical Beacons drizzle, it shrugged off moisture and dried out fast — meaning the waterproof stayed packed.

Since then, it's become our default fleece for everything from errands round town to breezy Cairngorms campouts and wild camping overnighters. In the space of a few months, it's clocked up more than 50 wears and still looks sharp.

Features and performance

Fabric and feel

What's genuinely special here is how outrageously soft the Daybreaker Block feels. The Polytech microfleece is some of the best we've ever pulled on: featherlight, silky against the skin, and quick to dry after sweaty climbs or light drizzle. Even after multiple washes, it still looks and feels fresh — a huge bonus when you're wearing something this often.

"After more than 50 wears, there's no sagging at the elbows, no bobbling under the arms, and it still feels fantastic against the skin."

Construction and design details

Helly Hansen have been clever with durability and design. They've reinforced key areas like the shoulders, neck and chest pocket with tougher polyester panels, which give the Daybreaker Block a smarter look and genuinely help cut the wind on exposed trails. Those panels also fend off backpack rub — something budget fleeces often fail at spectacularly.

The zips are smooth-running YKKs with chunky toggles, easy to operate with gloved hands on a frosty ridge. The two hip pockets are lined with soft mesh and roomy enough for a flask or OS map. Up top, the napoleon chest pocket is perfectly sized for a phone or compass. There are no faffy drawcords or velcro wrist cinches — instead, the natural stretch of the fleece does the work, keeping things snug without adding weight or clutter.

Quick tipWear it as your outer on milder daysThe wind-blocking panels make the Daybreaker Block surprisingly capable as a standalone layer on drier, breezy days. Leave the waterproof in the bag and enjoy how light your pack feels.

How it performs in the UK

Pull all this together and it's clear why we've practically been living in the Daybreaker Block. On muddy Chiltern trails it kept us perfectly warm without ever feeling clammy. Up in the wind-whipped Brecon Beacons it cut the chill just enough and dried out impressively quickly after passing showers. On calm, chilly evenings in the Cairngorms it was exactly what we wanted to shrug on and keep wearing for hours.

It's also simply the layer we reach for most days back home — whether popping to the shop or meeting mates at the pub. The cut's sharp enough and the fabric plush enough that it never looks out of place. Even after a good 50 wears, it's still looking tidy, still feeling fresh. In our experience, that's pretty rare.

Buy the Daybreaker Block at Helly Hansen →

Comparison with rivals

Budget fleeces from Mountain Warehouse or Decathlon offer decent warmth at a fraction of the price — a no-brainer for occasional outings. But they start to show their age faster, lack the wind-blocking panels, and can't match the Polytech fabric's feel next to skin. At the other end, something like the TNF Summit Series Futurefleece is lighter, more technical, and better suited to high-output mountain use — but at nearly double the price. The Daybreaker Block sits in a compelling sweet spot: versatile enough for everything from hill days to town, premium enough to last, without the premium price tag.

Our verdict The fleece you'll reach for without thinking — every single time. Who's the Daybreaker Block really for? Honestly — just about anyone in the UK who likes to mix it up outdoors. Light enough to haul up big hills without a second thought, warm enough for lingering on breezy summits or ambling home late on chilly evenings, and smart enough that you'll happily keep it on through a café stop or post-walk pint. It costs more than a budget fleece, but it's in a completely different league for comfort, breathability and that plush feel next to skin. Factor in how well it holds up over dozens of wears and it starts to look like a very solid investment indeed. Not because it's flashy or overbuilt — but because it does exactly what you want, day after day, with zero fuss. Buy the Daybreaker Block at Helly Hansen →

FAQs

How warm is the Helly Hansen Daybreaker Block Microfleece?Warm enough for most UK days outside deep winter. Over a T-shirt or thin base layer, it handled everything from chilly spring mornings to breezy ridgelines in the Brecon Beacons. For frosty conditions it layers brilliantly under a shell without feeling bulky.

How breathable is the Helly Hansen Daybreaker Block Microfleece during high output activity?Exceptionally breathable for a synthetic midlayer. Even pushing up steep climbs, we never felt swampy or overheated. It's not quite on par with merino blends, but it's seriously impressive for polyester — and it dries fast after sweaty ascents.

How water resistant is the Helly Hansen Daybreaker Block Microfleece?It's not waterproof, but the tighter Polytech weave shrugs off light drizzle well and dries quickly. During a loop in the Brecon Beacons, passing showers never penetrated enough to cause problems — we kept the waterproof packed the whole time.

How packable is the Helly Hansen Daybreaker Block Microfleece?Very packable for a 350g fleece. We've stuffed it into daypacks alongside stoves, sleeping bags and the usual clutter, and it never hogged space. It's become our default grab-and-go layer for everything from day hikes to Cairngorms overnighters.

Is the Helly Hansen Daybreaker Block Microfleece worth the money?Absolutely. After 50-plus wears it's still our most-reached-for fleece, looking sharp and performing like day one. More expensive than budget alternatives, but miles ahead on comfort, durability and day-to-day enjoyment. The Daybreaker Block earns its price tag quickly.