Quick Summary
The Mac in a Sac Synergy Women’s Insulated Jacket is a navy insulated jacket in size 18. It is described as packable and lightweight, with Thermolite fill and a water repellent outer.
Useful details for buyers include the stated 135 g Thermolite fill, 550 fill power, YKK front zip, reflective detailing, elasticated cuffs and scoop back hem.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Brand | Mac in a Sac. |
| Product type | Women’s insulated jacket. |
| Variant | Navy. |
| Size | 18. Check the selected size before choosing an offer. |
| Fill | Thermolite fill, stated as 135 g and 550 fill power. |
| Outer | Water repellent outer, stated as 600 mm. |
| Zip | YKK front zip. |
| Other stated features | Reflective detailing, elasticated cuffs and a scoop back hem. |
| Weight-related wording | Lightweight. |
What to Compare Before Buying
- Size: This version is size 18, so compare it with the fit you need.
- Fill and warmth level: The jacket uses Thermolite fill with a stated 135 g and 550 fill power, so compare those figures with the level of insulation you want.
- Outer finish: The outer is stated as water repellent with a 600 mm figure, so compare that with the weather protection you need.
- Details and finish: Reflective detailing, elasticated cuffs and a scoop back hem may matter if those features are important to you.
Before You Decide
Confirm the size 18 fit and the navy colour before choosing an offer. If the fill, outer finish and front zip matter to your use, compare those details with what you need from an insulated jacket.





