Short Circuit Bike Shorts

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Get those pins out kids because the temp just went up! The Short Circuit Bike Short are our new must haves. The perfect length - not too short and not too long, these bikers elongate the leg with the branded elastic stripe and look cute as with the matching crop or an oversized tee.

  • 76% Recycled Nylon blended with Spandex for superior performance and high impact compression.
  • Squat proof coverage, enhanced moisture management and quick dry technology. 100% sweat patch proof in your most testing work out 
  • Supportive high rise waistband with internal elastic for anti-slip comfort
  • Branded elastic at side leg continues from top of waistband to hem
  • White piping next to elastic to highlight the elastic trim
  • Mid thigh length
  • True to size fit
  • Model is 176cm and wears a size 1
  • Ethically produced 


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Size chart

First Base 0 1 2 3 4
Universal XS S M L XL
Australia 6 8 10 12 14
USA 2 4 6 8 9
United Kingdom 6 8 10 12 13
Italy 38 40 42 44 45
France 34 36 38 40 41

Fit Guide

First Base 0 1 2 3 4
metric (centimeters)
Bust
77-81 82-86 87-91 92-96 97-101
Waist 63-67 68-72 73-77 78-82 83-87
Hips 82-86 87-91 92-96 97-101 102-106

General fit

FIRST BASE GARMENTS (TEES, BOTTOMS, DRESSES AND OUTERWEAR) ARE DESIGNED ON THE SLOUCHY SIDE

AND ARE MADE TO BE WORN OVERSIZED. WE WOULD ADVISE YOU GO DOWN A SIZE IF YOU PREFER A FITTED LOOK.

FIRST BASE ACTIVEWEAR IS TRUE TO SIZE AND ARE DESIGNED TO BE WORN TIGHT TO THE BODY.

OUR DESIGNERS AND GARMENT TECHS ENSURE THAT EVERY GARMENT CORRESPONDS TO OUR SIZING CHARTS, SO THAT YOU CAN SHOP ONLINE WITH CONFIDENCE. PLEASE TAKE A MOMENT TO MEASURE YOURSELF TO HELP SELECT THE BEST FIRST BASE SIZE FOR YOU. NO TAPE MEASURE AND NO IDEA? NO WORRIES -

DROP US AN EMAIL CUSTOMER.CARE@THISISFIRSTBASE.COM AND WE CAN TOTALLY HELP GET YOU SORTED.