Size Guide

There is no single universal BIBI size chart. Our current edit is sourced from multiple production partners, so the chart on each product page takes priority over any general conversion.

Measure first. Then compare with the chart attached to the exact product and variant you want.

How to measure

Measurement	How to take it
Bust	Measure around the fullest part of your bust, keeping the tape level and comfortably close.
Underbust	Measure directly beneath the bust. This is especially useful for sports bras and fitted tops.
Waist	Measure around your natural waist without pulling the tape tight.
Hip	Stand with feet together and measure around the fullest part of the hips and seat.
Inseam	Measure from the crotch seam to the desired hem along the inside leg.
Torso	For bodysuits and one-pieces, measure from one shoulder through the legs and back to the same shoulder.

Choosing between sizes

• Use body measurements unless a product chart clearly states that it lists garment measurements.
• For bottoms, prioritize waist and hip. For sports bras and fitted tops, prioritize bust and underbust.
• If a non-compressive style falls between sizes, the larger size may offer more ease; strongly compressive performance pieces require product-specific fit guidance.
• Height alone cannot determine size.

Before removing tags

Try the garment with clean underwear, move through a squat and arm raise, check comfort at seams and straps, and assess coverage in daylight. Keep hygiene protection in place where supplied until you are sure.