Quick Summary
The Mac in a Sac Synergy is a men’s insulated gilet in Jet Black, size L. It has a front zip and folds into its own sac for packing away between uses.
The listing specifies 105g of Thermolite insulation and also gives a 550 fill power figure. It describes the outer as water-repellent and gives a 600 mm figure; check what that measurement refers to if rain protection is important to your choice.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Brand and range | Mac in a Sac Synergy men’s insulated gilet. |
| Size and colour | Size L in Jet Black. Check the size guide and garment measurements against how you plan to layer it. |
| Insulation | The listing gives 105g of Thermolite insulation and 550 fill power. It does not explain how the fill-power figure applies to this insulation. |
| Packability | Folds into its own sac, so it can be packed away when not being worn. |
| Outer and detailing | Described as water-repellent, with a stated 600 mm figure, a YKK front zip, reflective detailing and a scoop back hem. |
| Material treatment | Listed as PFC- and PFOA-free. |
What to Compare Before Buying
- Fit: Check the size guide and measurements, particularly if you expect to wear the gilet over other clothing.
- Insulation: Consider whether the listed insulation suits your intended layering. No temperature range is given, so the figures should not be treated as a stated warmth rating.
- Rain protection: The listing describes a water-repellent outer and gives 600 mm, but does not explain the measurement. If you need protection in wet conditions, check the rating’s meaning and scope rather than assuming this is a waterproof gilet.
- Pack size: It folds into its own sac, but no packed dimensions are provided. Check the dimensions if space in a bag matters.
Compatibility, Size and Fit
This is the men’s size L variant in Jet Black. Compare the garment’s measurements with a similar item that fits you, and allow for the layers you intend to wear underneath. The listing does not provide garment dimensions or a fit description.
Important Limitations
The stated 600 mm figure is not explained, and no temperature range or packed dimensions are supplied. The listing also does not clarify the relationship between the 105g Thermolite insulation and the 550 fill power figure. Avoid using these details as a substitute for a defined rain or warmth rating.
Before You Decide
Confirm that size L is the fit you want, that the stated insulation suits your layering plans, and that the water-repellent description meets your needs. Check the meaning of the 600 mm figure if you need to assess rain protection.
