An elegant, year-round under-top for women on-the-go. The lightweight Siren is constructed from a beautiful 150gm jersey merino wool and a touch of LYCRA for spectacular stretch & comfort. The breathable Siren not only looks great on you, but also offers unrivalled temperature regulation - cooling you whilst you are hot, and insulating when cold. A unique sweetheart neckline adds a feminine touch, while the set-in sleeves and self binding fabric at the neck ensures that you are comfortable when you're active or running errands around town. The merino fabric naturally regulates temperature, manages moisture and resists odour - so that you can wear your Siren underwear comfortably for multiple days without washing. The merino wool/lycra blend offers great stretch & comfort, temperature regulation and odour resistance. A sweetheart neckline adds a feminine touch, while set-in sleeves and self binding fabric at the neck provide comfort. The Siren excels in both hot & cold climates. 96% merino wool, 4% LYCRA. 134 g / 4.73 oz. Slim fit.
An elegant, year-round under-top for women on-the-go. The lightweight Siren is constructed from a beautiful 150gm jersey merino wool and a touch of LYCRA for spectacular stretch & comfort. The breathable Siren not only looks great on you, but also offers unrivalled temperature regulation - cooling you whilst you are hot, and insulating when cold. A unique sweetheart neckline adds a feminine touch, while the set-in sleeves and self binding fabric at the neck ensures that you are comfortable when you're active or running errands around town. The merino fabric naturally regulates temperature, manages moisture and resists odour - so that you can wear your Siren underwear comfortably for multiple days without washing. The merino wool/lycra blend offers great stretch & comfort, temperature regulation and odour resistance. A sweetheart neckline adds a feminine touch, while set-in sleeves and self binding fabric at the neck provide comfort. The Siren excels in both hot & cold climates. 96% merino wool, 4% LYCRA. 134 g / 4.73 oz. Slim fit.
in 1 offers
An elegant, year-round under-top for women on-the-go. The lightweight Siren is constructed from a beautiful 150gm jersey merino wool and a touch of LYCRA for spectacular stretch & comfort. The breathable Siren not only looks great on you, but also offers unrivalled temperature regulation - cooling you whilst you are hot, and insulating when cold. A unique sweetheart neckline adds a feminine touch, while the set-in sleeves and self binding fabric at the neck ensures that you are comfortable when you're active or running errands around town. The merino fabric naturally regulates temperature, manages moisture and resists odour - so that you can wear your Siren underwear comfortably for multiple days without washing. The merino wool/lycra blend offers great stretch & comfort, temperature regulation and odour resistance. A sweetheart neckline adds a feminine touch, while set-in sleeves and self binding fabric at the neck provide comfort. The Siren excels in both hot & cold climates. 96% merino wool, 4% LYCRA. 134 g / 4.73 oz. Slim fit.
An elegant, year-round under-top for women on-the-go. The lightweight Siren is constructed from a beautiful 150gm jersey merino wool and a touch of LYCRA for spectacular stretch & comfort. The breathable Siren not only looks great on you, but also offers unrivalled temperature regulation - cooling you whilst you are hot, and insulating when cold. A unique sweetheart neckline adds a feminine touch, while the set-in sleeves and self binding fabric at the neck ensures that you are comfortable when you're active or running errands around town. The merino fabric naturally regulates temperature, manages moisture and resists odour - so that you can wear your Siren underwear comfortably for multiple days without washing. The merino wool/lycra blend offers great stretch & comfort, temperature regulation and odour resistance. A sweetheart neckline adds a feminine touch, while set-in sleeves and self binding fabric at the neck provide comfort. The Siren excels in both hot & cold climates. 96% merino wool, 4% LYCRA. 134 g / 4.73 oz. Slim fit.
Size
Last updated at 17/07/2025 16:10:31
| Fabric weight | 150 Ultralight |
| Layer | Underwear |
| Best for | Yoga and Studio |
| Fabric weight | 150 Ultralight |
| Layer | Underwear |
| Best for | Yoga and Studio |
