Women's PhD Seamless Strappy Bra

A Merino covered elastic band at the ribcage provides a secure anchor point for seamless Merino knit cups, ensuring comfort and support for a night on the town or a day on the mountain.


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    • Form Fit
    • 4 Degree™ Elite fit system for unparalleled support
    • Covered elastic band at ribcage provides a secure anchor point
    • Adjustable straps provide stability and support
    • Engineered knit cups
    • Ribbed knit side panels for increased support and a smooth look and feel
    • Seamless knit Merino Wool interior for ultimate next-to-skin comfort; Knit-in SmartWool logo at center back

    Knit in Turkey of : Outer Shell - 77% Polyester, 19% Nylon, 4% Elastane; Lining - 76% Wool, 14% Nylon, 10% Elastane

    Style SW0SO154

    Engineered Layers So You Can Go Further

    It’s pretty simple: when your gear works better, you can stay out longer. Instead of looking at layers individually, we took a “system” approach – designing pieces that not only work independently, but together as well. Fitting together. Made for each other. Smart layers that are more efficient, with less bulk.

    Layered together, our system doesn’t bunch or restrict movement, so you can focus on your adventure, not your clothing.


    Machine Wash Cold Gentle Cycle. Turn inside out before washing.

    Do Not Bleach. Bleach damages the natural wool fiber.

    Tumble Dry Low. Lay flat or line dry for best appearance.

    Iron Low. Hot irons can scorch the fabric.

    Dry Clean. Professionally dry clean as necessary.


    PhD Seamless Bras (bra size reference)

    Sizes Comparable Bra Size Recommended Impact
    XS 30 A,B,C - 32 A,B A,B - Medium Impact C - Low Impact
    S 32 A,B,C - 34 A,B A,B - Medium Impact C - Low Impact
    M 34 A,B,C - 36 A,B A,B - Medium Impact C - Low Impact
    L 36 A,B,C - 38 A,B A,B - Medium Impact C - Low Impact
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