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BackUnderwear & baselayers

Women's Baselayer Shirts & Tops Size S

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78 items
GO TO TOPGo to toparrow_up
Long-sleeve, half-zip thermal top in navy with diamond and snowflake patterns in pink and light blue. Features contrasting side panels and stitching.
  • Mix and match

Kari TraaROSE H/Z - Undershirt - dark navy blue

(26)

£99.99

Woman wearing matching light blue patterned long-sleeve top with half zipper and leggings, standing against a plain white background.

Kari TraaROSE - Undershirt - pastel light blue

£99.99

icebreaker WOMEN - Undershirt - NO COLOR
  • -11%

icebreakerWOMEN - Undershirt - NO COLOR

(148)

£76.00 £84.99

Navy long-sleeve performance shirt featuring a fitted design, raglan sleeves, and a smooth texture. Columbia logo on the chest.
  • -11%

ColumbiaMIDWEIGHT STRETCH LONG SLEEVE TOP - Undershirt - nocturnal

(17)

£40.00 £44.99

Black long-sleeve athletic shirt paired with green shorts, featuring a logo on the shorts. Outdoor setting with greenery in background.
  • -10%

icebreakerSIREN SWEETHEART - Undershirt - BLACK

(185)

£63.00 £69.99

Black and gray zip-up top with a geometric pattern, long sleeves, and a high collar. Made of stretchy, textured fabric for comfort.
  • Mix and match

Kari TraaROSE H/Z - Undershirt - black

(26)

£99.99

Get race day readyHow does Nike’s Zoom Fly 6 perform?

In this episode of Race Lab, our expert runner puts this Nike silhouette through its paces.

Watch what happens
Red running shoe with green-blue accents, featuring a streamlined design, textured upper, and "ZOOMX" branding on the sole.
Black long-sleeve t-shirt made of soft fabric with a round neck and a fitted silhouette, paired with gray leggings.
  • Mix and match

icebreakerWOMEN - Undershirt - BLACK

(148)

£84.99

Navy long-sleeve top features a high collar, floral-patterned accents on sleeves, and a small logo on the chest, made from smooth, stretchy material.
  • -11%

Calvin Klein GolfHALSEY BASELAYER - Undershirt - navy

£49.00 £54.99

Navy long-sleeve shirt with a round neckline, made of soft fabric, featuring a fitted design and minimal stitching detail on sleeves.
  • -11%

icebreakerWOMEN - Undershirt - dark blue

(148)

£76.00 £84.99

Black tank top made of a soft, stretchy fabric with a scoop neck, snug fit, and wide shoulder straps, designed for comfort and ease of movement.
  • -11%

icebreakerSIREN - Undershirt - BLACK

(321)

£49.00 £54.99

Black long-sleeve top with a high collar and a zipper. Made from a smooth, stretchy fabric. Minimalist design with no visible patterns or logos.

icebreakerMID WEIGHT SCOOP - Undershirt - black

(19)

£94.99

Long-sleeve activewear top and leggings in black and gray, featuring a geometric pattern and a half-zip collar. Pink logo accent on top.
  • New

Kari TraaANNA - Undershirt - black

£99.99

Long-sleeve top in light beige, made of sheer fabric with a v-neckline and fitted shape. Worn with navy blue loose-fitting pants.
  • -10%

icebreakerSIREN SWEETHEART - Undershirt - white

(185)

£63.00 £69.99

Black and gray patterned turtleneck sweater featuring intricate geometric motifs, long sleeves, and a small pink logo on the cuff.

Kari TraaSAGA HOOD - Undershirt - black

£119.99

Black tank top made of smooth fabric with thin straps. Features a white logo on the left side near the hem. Sleek, fitted design.
  • -12%

PumaCAMISOLE 1 PACK - Undershirt - black

(9)

£14.00 £15.99

Gray tank top with a scoop neckline and wide straps, made of a textured fabric. Paired with black shorts featuring a white splatter pattern.
  • -11%

icebreakerSIREN - Undershirt - medium grey

(321)

£49.00 £54.99

Beige tank top with a scoop neckline and thin shoulder straps, made from smooth fabric, featuring a slightly fitted design.
  • -11%

icebreakerSIREN - Undershirt - MEDIUM BEIGE

(321)

£49.00 £54.99

Navy long-sleeve athletic top with a high collar, pink zipper, and blue accents on the sleeves and sides; crafted from moisture-wicking material.
  • New

Kari TraaALMA - Undershirt - dark navy blue

£69.99

Light purple long-sleeve top with a zip-neck, featuring a subtle floral pattern, contrasting light blue stitching, and a fitted design.
  • New

Kari TraaANNA - Undershirt - light pink

£99.99

Long-sleeve zip-top in patterned pink and navy, featuring a high collar and fitted design. Fabric displays diamond and snowflake motifs.
  • New

Kari TraaROSE HOOD - Undershirt - dark navy blue

£119.99

Green patterned long-sleeve top with striped accents and fitted design, paired with matching striped leggings featuring various textures.
  • New

Kari TraaSMEKKER - Undershirt - thyme

£89.99

Long-sleeve athletic top in pink with a geometric pattern, quarter-zip front, high collar, and contrasting blue stitching.

Kari TraaUndershirt - bright pink

£99.99

Gray long-sleeve zippered top with a high collar, made of a smooth, lightweight fabric, featuring a fitted design and minimal stitching details.
  • -11%
  • Mix and match

icebreakerMID WEIGHT SCOOP - Undershirt - gritstone

(19)

£85.00 £94.99

Woman wearing black-and-white patterned long-sleeve top with thumb holes, pink zipper, and matching leggings, standing against a plain background.
  • New

Kari TraaTALE - Undershirt - black

£99.99

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