All Flex Life Wear pieces are cut to the sizing below. If you're between sizes or prefer a looser fit, size up.

International size conversion

Size UK / AU US EU
S 6 – 8 2 – 4 34 – 36
M 8 – 10 4 – 6 36 – 38
L 10 – 12 6 – 8 38 – 40
XL 12 – 14 8 – 10 40 – 42

How to measure

Use a soft tape measure, keep it snug but not tight, and measure over bare skin or thin clothing.

  • Bust — around the fullest part of your chest, tape level all the way round.
  • Underbust — directly beneath your bust, where a bra band sits. This is the measurement that matters most for our sports bras.
  • Waist — the narrowest part of your torso, usually just above your navel.
  • Hips — around the fullest part of your hips and seat, feet together.
  • Inseam — from the inside of your upper thigh straight down to your ankle bone.

Choosing your size

  • Between two sizes? Size up for a relaxed fit, stay in the smaller size for a compressive one.
  • Sports bras — go by your underbust measurement rather than your usual bra size.
  • Leggings — go by your hip measurement. The waistband stretches considerably more than the leg.
  • Oversized styles — our cropped tees, sweaters and pullovers are cut loose by design. Take your normal size unless you want extra room.

Still not sure?

Email shop@flexlifewear.com with your measurements and we'll tell you which size to order. If it doesn't work out, see our returns policy — you have 15 days.

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