Mac in a Sac Origin Waterproof Jacket | Packable Unisex Rain Jacket | Neon Green

Mac in a Sac

€37.99

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S
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Mac in a Sac Unisex Size Guide

Mac in a Sac Adult Unisex Size Guide

Size Chest (cm) Chest (in) EU Ladies EU Mens US Size
XXS 8 73-79 cm 29-31 in 36 46 4
XS 10 81-86 cm 32-34 in 38 48 6
S 12 89-94 cm 35-37 in 40 50 8
M 14 97-102 cm 38-40 in 42 52 10
L 16 104-109 cm 41-43 in 44 54 12
XL 18 112-117 cm 44-46 in 46 56 14
2XL 20 119-124 cm 47-49 in 48 58 16
3XL 22 127-132 cm 50-52 in 50 60 18
About Mac in a Sac


Mac in a Sac is a Belfast-born outdoor brand with over 35 years of experience creating lightweight, packable outerwear for changing weather. The range includes waterproof jackets and overtrousers, ultralight waterproof running jackets and trousers, as well as packable insulated gilets and jackets for extra warmth without unnecessary bulk. Designed to be compact, practical and easy to carry, Mac in a Sac clothing is ideal for walking, running, travel, festivals, school trips and everyday outdoor use. With a strong focus on lightweight performance, waterproof protection and packability, the brand is a versatile choice for anyone who wants dependable outdoor clothing that can be packed away when not needed.

Mac in a Sac is available from Borderland Muff, Donegal, Ireland. Borderland Muff is an authorised Mac in a Sac stockist.

Mac in a Sac Origin Waterproof Jacket – Packable Unisex Rain Jacket

The Mac in a Sac Origin Waterproof Jacket is a lightweight, packable waterproof designed for walking, travel, commuting, festivals and everyday outdoor use. With 10,000mm waterproof protection, 8,000gsm breathability and fully taped seams, it gives dependable weather protection without the bulk of a heavier shell jacket.

Product Description

Built for unpredictable weather, the Mac in a Sac Origin combines waterproof performance with a compact, easy-to-carry design. It packs neatly into its own stuff sack, making it ideal for keeping in a backpack, suitcase or car when rain is forecast.

The jacket is both waterproof and windproof, with a concealed adjustable hood, back ventilation and an adjustable hem to help improve comfort in changing conditions.

Why You'll Like It

  • Lightweight and easy to carry
  • Packs into its own compact stuff sack
  • 10,000mm waterproof protection
  • 8,000gsm breathability
  • Windproof construction
  • Ideal for walking, hiking, travel and everyday use
  • Useful as an emergency waterproof for the car or backpack
  • Unisex sizing suitable for men and women

Key Features

  • 10,000mm waterproof rating
  • 8,000gsm breathability
  • Fully taped seams
  • Windproof construction
  • Water-repellent YKK® front zip
  • Concealed adjustable hood
  • Back ventilation for improved airflow
  • Two zipped front pockets
  • Elasticated cuffs
  • Adjustable drawcord hem
  • Reflective detailing
  • PFC & PFOA-free water-repellent finish
  • Supplied with compact stuff sack
  • Unisex fit

Fit & Sizing

The Mac in a Sac Origin is a unisex jacket designed to suit both men and women.

Men can generally choose their normal size. Women looking for a closer or less relaxed fit may prefer to size down.

For the best fit, check the Mac in a Sac size guide before ordering.

Materials & Specifications

  • Brand: Mac in a Sac
  • Model: Origin
  • Product: Packable Waterproof Jacket
  • Waterproof Rating: 10,000mm
  • Breathability: 8,000gsm
  • Windproof: Yes
  • Seams: Fully taped
  • Front Zip: Water-repellent YKK® zip
  • Hood: Concealed adjustable hood
  • Ventilation: Back venting
  • Cuffs: Elasticated
  • Hem: Adjustable drawcord
  • Pockets: 2 zipped front pockets
  • Reflective Detail: Yes
  • Packable: Yes – packs into its own stuff sack
  • Water-Repellent Finish: PFC & PFOA free
  • Fit: Relaxed unisex fit
  • Use: Walking / hiking / commuting / travel / festivals / everyday outdoor wear

The Borderland Muff View

The Mac in a Sac Origin is a strong choice for customers who want a genuinely packable waterproof rather than a bulky everyday coat. The combination of waterproofing, breathability and compact storage makes it particularly practical for Irish weather, where conditions can change quickly.

It is especially useful as a jacket you can keep close at hand for walking, travelling, outdoor events or everyday use without taking up much room when it isn't needed.

About Mac in a Sac

Mac in a Sac is a Belfast-born outdoor brand with over 35 years of experience creating lightweight, packable outerwear for changing weather. The range includes waterproof jackets and overtrousers, ultralight waterproof running jackets and trousers, as well as packable insulated gilets and jackets.

The brand focuses on lightweight performance, weather protection and easy packability, making its clothing well suited to walking, running, travel and everyday outdoor use.

Why Buy Mac in a Sac from Borderland Muff?

Borderland Muff is an authorised Mac in a Sac retailer in Ireland, supplying genuine Mac in a Sac products from our store in County Donegal.

Shop with confidence with expert product advice, fast delivery throughout Ireland and straightforward returns if you need to change your size.

Frequently Asked Questions

Is the Mac in a Sac Origin Waterproof Jacket fully waterproof?
Yes. It has a 10,000mm waterproof rating together with fully taped seams and a water-repellent YKK® front zip.

How breathable is the Mac in a Sac Origin?
The jacket has an 8,000gsm breathability rating and also features back ventilation to help improve airflow.

Does the jacket pack into its own bag?
Yes. The Origin comes with a compact stuff sack, allowing it to be packed away and carried easily.

Is the Mac in a Sac Origin suitable for hiking?
Yes. Its lightweight construction, waterproof protection and packable design make it particularly useful for walking, hiking and travel.

Is it a men's or women's jacket?
It is a unisex jacket and is available in a wide range of sizes.

Is the Mac in a Sac Origin windproof?
Yes. It is designed to provide both waterproof and windproof protection.

Complete the outfit

Pair this jacket with the Mac in a Sac waterproof pull on trousers for total weather protection.

If you are heading to a festival or are looking for a bit more waterproof coverage the Mac in a Sac poncho might be just what you are looking for.