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Men's 300 MerinoFine™ Polar Long Sleeve Half Zip

$260.00

Color: Abyss

Size:

Base layer type: 1/2 zip

1/2 zip

Roll neck

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Men's 300 MerinoFine™ Polar Long Sleeve Half Zip

$260.00

Details

A heavyweight merino wool base layer top designed for the coldest of days, the 300 MerinoFine™ Polar Long Sleeve Half Zip features premium 15.5-micron icebreaker merino wool that offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort.

Features & Details

MerinoFine™ - Premium 155-micron icebreaker merino wool offers refined softness while efficiently managing moisture, drying quickly, providing natural odour resistance, and delivering breathable comfort
Half Zip for varying temperatures
Thumb loops to help keep your sleeves in place and for added coverage
Flatlock seams to help reduce friction
Drop tail hem for added coverage
Zipper chin guard to prevent friction

Style IBBA56Q9Z43
Product weight M=320g/11.29oz

Good for:

Snow Sports

Fabric & care

Fabric content

100% Wool exclusive of decoration

Warmth system: 300

75
150
200
260
300
460+

Merino fiber micron: 15.5µ

15.5
16.75µ
18.0µ
19.25µ
20.5µ
21.75µ
23.0µ
25.5µ

Care

Machine Wash Cold Gentle Cycle. Wash With Like Colors. Do Not Use Softener. Close All Fasteners Before Washing. Do Not Bleach. Do Not Tumble Dry. Dry Flat In The Shade. Cool Iron. Do Not Dry Clean

Fit & sizing

Model measurements

Lavrans is wearing a size M. Height: 187cm / 6'2". Waist: 76cm / 29".

Key product measurements

Back High Point Shoulder to Hem: 73cm (based on size M)

Fit

Slim

What is MerinoFine 15.5 micron?

Ultrafine 15.5 micron merino fibres feel luxurious and silky-soft next to skin. All styles made from 15.5 micron merino are ZQRX sourced merino. ZQRX is the evolution of our current ZQ merino source standard, a mark of integrity for merino growers committed to ethical wool production through welfare, caring for the environment and social responsibility. All 15.5 growers are signed up to the platform and are on their journey to ensuring regenerative agriculture principles and practices towards a more positive future.

Delivery & Returns

Free returns
Free ground shipping* - Learn more

Cool Conditions

Warm Conditions

Low Intensity

High Intensity

125

ZoneKnit™

175

Everyday

200

Oasis

200

ZoneKnit™

260

Oasis

260

Vertex

260

ZoneKnit™

260

ZoneKnit™ Seamless

300

MerinoFine

Complete the Look

Currently Viewing: Men's 300 MerinoFine™ Polar Long Sleeve Half Zip

MerinoFine™

The art of natural softness.

As the finest expression of icebreaker’s merino craft, MerinoFine™ isn’t simply something you wear, it’s something you experience. Made with 100% merino wool sourced from selected New Zealand farms, two distinct ultrafine fibre innovations at 15.5 and 17.5 microns lay the foundation for its exceptional softness, bringing natural performance, quality and care together in every piece.

100% merino wool

Ultrafine merino fibre

Superior Softness

AI Generated Review Summary

Summary topics

Review topics: ["fit","weight","quality","works","thickness","colour","buy","shirt","clothing","base layer"].

Review highlights

Reviews

Not worth the money

"I have some older icebreaker thermal’s that are paper thin and work way better than the newer ones. Definitely don’t recommend for the price you’re paying"

— Anonymous (2/5)

Icebreaker 300 weight

"Superfine soft and beautifully cut. I have a number of this brands expedition weight garments. They are fantastic. This top is so nice I’m hesitant to wear it for sport. It’s like a designer dress garment"

— Anonymous (5/5)

Order up

"This article runs a bit small so order up one size."

— Anonymous (3/5)

My new favorite! Thick and

"My new favorite! Thick and cozy."

— Sean P. (5/5)

As Good as I Hoped

"Quality product, warm and perfect fit. Is great over a thermal and/or under a jacket so works well for layering also. So all-in-all, I am very happy with this purchase."

— Rocket (5/5)

Very soft and warm

"It is very comfortable and soft on the skin. Does exactly what it says on the tin - keeps you warm in very cold conditions."

— Mango (5/5)

Icebreaker 300 top

"Good quality clothing, fast delivery, warm and cosy"

— Al (5/5)

Excellent product

"Good weight fabric and incredibly soft. Almost silk like feeling against the skin. Very comfortable and warm so far and looking forward to seeing how well it performs over time. Really impressed so far."

— D (5/5)

Solid Base Layer

"I was really looking for a heavy base layer and purchased these top & bottoms immediately. The quality is still obvious. Warm, but still breathable, the Size medium is just a bit snug on my 6'0"" frame but still fine. I just completed a cold weather exercise the military where it was -15C to -23C. This is what I wore all weekend."

— Sarge (5/5)

Warm but quality control issue

"Use it for cold weather hiking and biking. It is warm and cozy. The zipper does not work properly as I need to twitch it left/right along the upper end to make it zip all the way. The zipper is anything but smooth as the other icebreaker items including a cardigan are, that i own. For a size large it needs to be longer to work optimal as an undershirt. The material is superb."

— Portalite (4/5)

Q&A

Size Guide

Neck

Measure around the middle of your neck, leaving the tape loose.

Chest

Measure under your arms around the fullest part of your chest.

Arm length

Measure from the back of your neck to the top of your shoulders, to your elbow and down to your wrist bone.

Measure yourself:

Use the chart below to determine your size. If you’re between two sizes, order the smaller size for a tighter fit or the larger size for a looser fit. If your measurements for chest and waist correspond to two different sizes, order the size indicated by your chest measurement for tops and your hip measurement for pants.

Sizing charts:

	XS	S	M	L	XL	XXL	XXXL
Neck	12-13	13-14	14-15	15-16	16-17	17-18	18-19
Chest	33-35	35-37	37-40	40-43	43-46.5	46.5-49.5	49.5-52
Arm length	33.5	33.5-34	34	34-34.5	34.5	34.5-35	35-35.5

	XS	S	M	L	XL	XXL	XXXL
Neck	32-34	34-36	36-38	38-41	41-43	43-46	46-49
Chest	84-89	89-94	94-102	102-110	110-118	118-126	126-134
Arm length	85-85.5	85.5-86	86-86.5	86.5-87	87-88	88-89	89-90

Fit guide:

Our three different fits - slim, regular, and relaxed - ensure that when worn together, layers move and breathe like a single garment.

Slim fit

A snug, close-to-body fit for low bulk layering.

Regular fit

Neither snug nor loose - garments that are worn solo or over other layers.

Relaxed fit

Loose-fitting layers for a more relaxing feel.

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Relevant Links

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Details

Complete the Look

The art of natural softness.

100% merino wool

Ultrafine merino fibre

Superior Softness

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AI Generated Review Summary

Summary topics

Review highlights

Reviews

Not worth the money

Icebreaker 300 weight

Order up

My new favorite! Thick and

As Good as I Hoped

Very soft and warm

Icebreaker 300 top

Excellent product

Solid Base Layer

Warm but quality control issue

Q&A

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