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Merino Zip Shirt Jacket

564 reviews
$125 $160
Men's Merino Mock Neck Shirt, black, front
  • Men's Merino Mock Neck Shirt, black, front
  • Men's Merino Mock Neck Shirt, black, fit
  • Men's Merino Mock Neck Shirt, black, side
  • Men's Merino Mock Neck Shirt, black, front
  • Men's Merino Mock Neck Shirt, black, fit
  • Men's Merino Mock Neck Shirt, black, side
Merino Zip Shirt Jacket

Merino Zip Shirt Jacket
564 reviews

Light, clean drape with a shirt's details. A 14-gauge zip shirt jacket in 100% merino wool, with a low mock collar and snap, button cuffs and a curved hem, cut slim in a smooth, faintly heathered knit.

$125 $160
Save $35

Light, clean drape with a shirt's details. A 14-gauge zip shirt jacket in 100% merino wool, with a low mock collar and snap, button cuffs and a curved hem, cut slim in a smooth, faintly heathered knit.
ColorBlack
ColorBlack
Size

Customer fit: based on 564 reviews

Find your size

Find your size in a few simple steps

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Size guide

Our pieces follow standard US men's sizing, from S to XXL. The short answer: take the size you usually wear.

Which size to take

  • Order your usual size. For most men, in most of our pieces, that's the right call.
  • Between two sizes? Size up for an easier fit, particularly if you wear a shirt or a layer underneath.
  • On every product page, Find my fit next to the sizes starts from the size you usually wear, and Fit and sizing gives the model's height and the size worn in the photos.

Body measurements

These are body measurements, not garment measurements. Measure over a thin shirt and compare.

Size Chest Waist Hips
S 35 to 37.5 in
89 to 95 cm		 29 to 31 in
73 to 79 cm		 35 to 37.5 in
89 to 95 cm
M 37.5 to 41 in
95 to 104 cm		 31 to 35 in
79 to 89 cm		 37.5 to 41 in
95 to 104 cm
L 41 to 44 in
104 to 112 cm		 35 to 37 in
89 to 94 cm		 41 to 44.5 in
104 to 113 cm
XL 44 to 47.5 in
112 to 121 cm		 37 to 41 in
94 to 104 cm		 44.5 to 47.5 in
113 to 121 cm
XXL 47.5 to 50 in
121 to 127 cm		 41 to 42.5 in
104 to 108 cm		 47.5 to 50 in
121 to 127 cm

How to measure

  • Chest: measure around the fullest part of your chest, just under the arms, with the tape level across your back.
  • Waist: measure around your natural waistline, where you would normally wear your trousers.
  • Hips: stand with your feet together and measure around the widest part of your hips and seat.

Keep the tape snug, not tight. And if your measurements point to two different sizes, go by your usual size and how you like a piece to fit.

Still unsure?

Write to info@casmerino.com with the piece and your usual size, and we'll help you choose. Returns are accepted within 30 days of delivery; see our refund policy.
Free USA shippingFree 30-day returns

Light, clean drape with a shirt's details. A 14-gauge zip shirt jacket in 100% merino wool, with a low mock collar and snap, button cuffs and a curved hem, cut slim in a smooth, faintly heathered knit.

Buy more, save moreMix any styles

  • 2 pieces10% off
  • 3 pieces15% off
  • 4+ pieces20% off
Our merino

Sustainable Australian Merino Wool

Merino is not ordinary wool. Australia grows the finest merino in the world, and it is the only merino we use.

Soft against the skin

The fiber is a fraction of the width of a human hair, so it bends against the skin instead of prickling. It feels like fine cotton, and you can wear it next to the skin all day.

Warm when it is cold, cool when it is warm

The sheep live outdoors through hot days and cold nights, and their fleece evolved to cope with both. It keeps you warm when it is cold and lets heat out when it is warm.

Fresh for days

Wool pulls sweat away from the skin as vapor and holds up to a third of its weight before it feels damp. Odor-causing bacteria never get a foothold, so you can wear it for days between washes.

Fine gauge, close drape

We knit it at a fine gauge with a smooth, flat face, so it drapes close and looks as good under a jacket as it does on its own.

The standards behind it

  • WoolmarkWoolmarkFiber and performance
  • NATIVANATIVAResponsible wool
  • RWSRWSSheep and land welfare
  • OEKO-TEXOEKO-TEXStandard 100
Try it at home

Casmerino’s Guarantee & Warranty

Try it on at home and decide there. Shipping in the US is free, and so are returns within 30 days.

Free shipping across the US

Every order inside the US ships free. We email you a tracking link as soon as it ships.

Free returns for 30 days

If it is not right, send it back within 30 days and the return costs you nothing. For another size or color, order the one you want.

Questions first? Contact us

Included with every order

Odor resistant
Light & breathable
Fast drying
Temperature regulating

Slim fit, fits close

Close through the chest and arms without clinging. Sleeves end at a button cuff, and the curved hem sits at the hip, so it tucks in or layers under a jacket.

Model is 189 cm, wears L

Size guide

100% merino wool in a 14-gauge fine knit. Fine fibres sit soft on bare skin, and the wool breathes through a long day.

SoftnessSuperfine, 17.5 µm

Micron is the width of one fibre. Lower is softer.

Composition
100% merino wool
Fibre
Superfine merino wool, 17.5 micron
Knit or weave
Fine-gauge knit
Gauge or weight
14 GG
Neckline or collar
Mock neck, snap closure
Closure
Full-length zip
Sleeve
Long sleeve, button cuff
Length
Hip length
Fit
Slim fit

  • Hand wash cold or machine wash on wool
  • Dry flat
  • Do not bleach
  • Do not tumble dry

Light, clean drape with a shirt's details. A 14-gauge zip shirt jacket in 100% merino wool, with a low mock collar and snap, button cuffs and a curved hem, cut slim in a smooth, faintly heathered knit.

Composition
100% merino wool
Fibre
Superfine merino wool, 17.5 micron
Knit or weave
Fine-gauge knit
Gauge or weight
14 GG
Neckline or collar
Mock neck, snap closure
Closure
Full-length zip
Sleeve
Long sleeve, button cuff
Length
Hip length
Fit
Slim fit

Fibre finenessSuperfine, 17.5 µm

Micron is the width of one wool fibre. The lower the number, the softer the wool feels on skin.

You may also like

“Merino made for the road. Light, breathable and fresh day after day.”

CasmerinoAustralian Merino Wool®

  • Our Australian merino has fine 17.5 micron fibers that feel soft against bare skin. The Woolmark® label vouches for its fiber content, color fastness and shape retention.
  • With NATIVA™, every bale is traceable to its farm of origin, and every farm is mulesing-free.
  • The Responsible Wool Standard (RWS) sets clear requirements for how the sheep are cared for and how their grazing land is managed.
  • Each piece carries the OEKO-TEX® STANDARD 100 label: every thread, button and trim is tested for harmful substances.
Woolmark
NATIVA
Responsible Wool Standard
OEKO-TEX Standard 100

Good to know.

Quick answers before you order.

Ask us anything else

It has a slim fit. Take your usual size, and if you are between two, size up for an easier fit.

Yes. Tap Find my fit next to the sizes. It asks a few short questions, starting with the size you usually wear, and suggests a size for this piece.

The Fit and sizing section above gives the model's height and the size worn in the photos, so you can compare it with your own build.

Not with the right care. Heat and a tumble dryer are what shrink wool, so wash it cool, by hand or on a wool cycle, and dry it flat.

Send it back within 30 days and the return costs you nothing. Then order the size you want.

Ask us anything else

What people are saying

4.8

Based on 564 reviews

  • 5 star 485
  • 4 star 69
  • 3 star 6
  • 2 star 2
  • 1 star 2

How did you find the fit?

Runs smallTrue to sizeRuns big

Customer Reviews

4.8

564 reviews

B
Ben A.
9/30/26

5 Stars

This is very nice product, I am happy for buy this one. The feeling when wearing is very good, make me want to wear everyday. I will recommend to my friend also for sure.

R
Roy Harrison
9/26/26

Didn't expect to love it

Wasn't sure it would be worth the price. A few weeks in, it still looks and feels brand new, and I'm wearing it a lot more than I thought I would.

C
Chris W.
9/25/26

Solid

Took the XL. Wear it with jeans most days, sometimes chinos. Looks fine both ways and does the job without any fuss. No complaints from me.

H
Henry
9/25/26

Light but keeps you warm

Been wearing this khaki one with cream trousers and a white tee underneath, from the office to dinner out. What I like most is the weight. Warm enough for a cool evening without feeling like a heavy sweater, and it fits under a jacket without adding bulk. Zips up fast, too. Beats fumbling with buttons when you're trying to leave the house on time. It moves with you instead of feeling stiff.

G
Gerald
9/23/26

Blocks the wind

Collar blocks the wind nicely.

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