Packable Performance Outerwear For Life On The Go
Born for Everyday Adventures
For over 35 years, Mac in a Sac has been designing high-performance, packable outerwear built to empower everyday adventures. From the streets of Belfast to weekend hikes and school trips, our first-generation Mac in a Sac jacket became a trusted companion in backpacks, school bags, and on every journey in between. Lightweight, durable, and waterproof, these jackets make it easy to enjoy life on the move — whatever the weather.
You Choose the Adventure. We Make it Possible.
Adventure comes in all shapes and sizes — a weekend hike with friends, a day at the beach, a festival, or even the first day of school. Mac in a Sac equips you to embrace every adventure, giving you freedom, comfort, and protection in all conditions.
Our #PackableWaterproof and #PackableWarmth collections deliver industry-leading specifications for everyday life. From classic packable jackets, overtrousers, and Mini jackets for kids, to the Venture Series, Synergy jackets & gilets, festival ponchos, and tonal zip updates, every product is designed to be lightweight, practical, and adventure-ready.
A History of Expertise. A Future of Possibilities.
From our first packable jackets to today’s Venture Series, Synergy jackets, and festival ponchos, Mac in a Sac has spent over 35 years refining lightweight, waterproof, and adventure-ready outerwear. Built on a foundation of waterproof expertise in Belfast, every product is designed to keep you moving and ready for life on the go.