Quick Summary
The Mac in a Sac Synergy is a women’s insulated gilet in Soft Teal, size 12. It has 105 g of Thermolite insulation, a water-repellent outer with a stated 600 mm rating, and packs into its own sac.
Key Details
| Detail | Product information and buyer relevance |
|---|---|
| Model and type | Synergy women’s insulated gilet by Mac in a Sac. |
| Size and colour | Size 12 in Soft Teal. Check the fit against the sizing information and the layers you intend to wear. |
| Insulation | 105 g of Thermolite insulation is stated. The listing also gives 550 fill power, but does not make clear what this figure refers to. |
| Outer | Described as water-repellent, with a stated 600 mm rating. This is not presented as waterproof protection. |
| Packability | Packs into its own sac for carrying or storage. |
| Design details | YKK front zip, reflective detailing and a scoop back hem. |
| Material claim | Described as PFC and PFOA free. |
What to Compare Before Buying
- Fit: Check size 12 against the sizing information and allow for the layers you expect to wear beneath the gilet.
- Rain protection: The outer is described as water-repellent for light rain, not as waterproof. Consider whether that matches the conditions you expect.
- Insulation specification: The stated 105 g of Thermolite and 550 fill power are not clearly linked. Check the insulation details if the fill-power figure matters to your choice.
- Exact version: Confirm the Soft Teal colour and size 12 when selecting this single-item version.
Planning Layers
Consider what you will wear beneath the gilet when checking the fit. If you expect to need rainwear, treat that as a separate layer: the stated water-repellent outer is not described as waterproof.
Before You Decide
Confirm the Synergy model, Soft Teal colour and size 12. Check the fit with your intended layers, and consider whether the stated light-rain protection and insulation information suit your requirements.






