Icebreaker Siren Bra, REI Co-op

Made with a soft, durable merino blend to regulate body temperatures in all weather conditions, the Icebreaker Siren bra is lightly supportive and endlessly comfortable for easy everyday layering.

Must-have backpacking gear for every skill level

Made with a soft, durable merino blend to regulate body temperatures in all weather conditions, the Icebreaker Siren bra is lightly supportive and

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Icebreaker Siren