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Women’s Polyester Base Layers

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63 items
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Black leggings featuring a smooth, stretchy fabric with a wide, solid waistband. The design is form-fitting and full-length, with no patterns.
  • -10%

ColumbiaMIDWEIGHT STRETCH TIGHT - Base layer - black

(15)

£45.00 £49.99

Black long-sleeve top with a high collar and half-zip closure. Smooth fabric with fitted design. Features a small logo on the chest.

ODLOTURTLE NECK HALF ZIP ACTIVE WARM - Undershirt - black

(4)

£54.99

Black long-sleeve top made of lightweight fabric, featuring a round neckline and a discreet logo on the left chest. Matched with gray leggings.

ODLOCREW NECK ACTIVE WARM - Undershirt - black

(48)

£44.99

PURE NO SHOW 3 PACK - Briefs - blue atlantis/washed navy/blue calm
  • -12%

Under ArmourPURE NO SHOW 3 PACK - Briefs - blue atlantis/washed navy/blue calm

(4)

£23.00 £25.99

Black long-sleeve thermal top with a slim fit, featuring a smooth texture and flatlock seams. Logo on the chest and thumbholes on cuffs.

ColumbiaMIDWEIGHT STRETCH LONG SLEEVE TOP - Undershirt - black

(17)

£44.99

Black leggings with a high waistband, made of a textured material. Features a logo on the side and fitted design. Soft and stretchy.

ODLOBOTTOM LONG ACTIVE WARM - Base layer - black

(32)

£44.99

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.
Long-sleeve top in a multicolor tie-dye pattern with blue, brown, and tan. Features a crew neckline and smooth, stretchy material.
  • -10%

Peak PerformanceSPIRIT CREW - Undershirt - frosty haze

£63.00 £69.99

Black long-sleeve top with a high collar, featuring a textured fabric, fitted design, and raglan sleeves for ease of movement.
  • New

RaphaWOMENS THERMAL BASE LAYER - Undershirt - black

£89.99

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

ColumbiaMIDWEIGHT STRETCH LONG SLEEVE TOP - Undershirt - nocturnal

(17)

£44.99

Woman with short dark hair wearing a fitted long-sleeve purple athletic top and matching leggings, standing against a plain light background.

ODLOCREW NECK ACTIVE WARM - Undershirt - skipper blue

(48)

£44.99

Purple leggings made of soft, stretchy fabric. Features a high waist and fitted design with a small logo on the hip. Smooth texture and full length.
  • -11%

ODLOBOTTOM LONG ACTIVE WARM - Base layer - skipper blue

(32)

£40.00 £44.99

Black short-sleeve athletic shirt made of breathable mesh fabric. Features a round neckline and a subtle logo on the upper left.
  • -10%

ODLOCREW NECK ACTIVE DRY LIGHT - Undershirt - schwarz

(4)

£36.00 £39.99

Long-sleeve, gray top with a fitted design, made from a smooth, stretchy fabric. Features a small red logo on the chest.
  • -40%

CastelliMEDIO BASE LAYER LONG SLEEVE - Undershirt - melange gray

£48.00 £79.99

Colorful, stretchy leggings in a tie-dye pattern featuring shades of blue, orange, and white, with a fitted design and smooth texture.
  • New

BurtonWOMENS MIDWEIGHT PANTS - Base layer - multi-coloured

£64.99

Long-sleeve black mesh top with a scoop neck, fitted design, and textured surface, featuring a subtle logo tag near the neckline.
  • New

RaphaWOMENS LIGHTWEIGHT BASE LAYER LONG SLEEVE - Undershirt - black

£64.99

Long-sleeve black top made of smooth, stretchy fabric with thumbholes. Features a round neckline and subtle branding on the sleeve.

BurtonWOMENS MIDWEIGHT CREW - Undershirt - true black

£64.99

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

Kari TraaALMA - Undershirt - dark navy blue

£69.99

Columbia OMNI HEAT INFINITY CREW - Undershirt - everblue/snowflight
  • -11%

ColumbiaOMNI HEAT INFINITY CREW - Undershirt - everblue/snowflight

£49.00 £54.99

Black leggings made of stretchy material, featuring a wide elastic waistband with "TERREX" branding and a fitted design.

adidas SportswearMULTI - Base layer - black

(5)

£39.95

Long-sleeve athletic top in light purple with a tie-dye pattern, made from a textured, moisture-wicking fabric; features a round neckline.
  • -11%

ColumbiaOMNI HEAT INFINITY CREW - Undershirt - shale purple/snowflight

£49.00 £54.99

PeakPerformance capri leggings with a blue, brown, and navy tie-dye pattern. Made from stretchy fabric, featuring a supportive waistband.
  • New

Peak PerformanceSPIRIT JOHN - Base layer - frosty haze

£59.99

Black long-sleeve top with a high collar, featuring a geometric pattern in white, zippered front, and fitted design.

Kari TraaLEKKER - Undershirt - black

£89.99

Long-sleeve, high-collar shirt in light beige, featuring a half zipper and textured fabric. Brand logo on the chest, slim fit design.

ODLOTURTLE NECK HALF ZIP ACTIVE WARM - Undershirt - agate gray

(4)

£54.99

Long-sleeve activewear top made of stretch fabric with a multicolor abstract print in blue, pink, and orange. Features a crew neckline and thumbholes.
  • New

BurtonWOMENS MIDWEIGHT CREW - Undershirt - multi-coloured

£64.99

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