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Stretch

The Science Stretch

Elastane (also known as spandex) gives underwear its shape and stretch, but did you know that conventional options are made entirely from petroleum-based materials? CREORA® bio-based elastane replaces 70% of those fossil-fuel-derived inputs with ones sourced from cornstarch and, soon, sugarcane – a renewable crop that stores carbon as it grows1, 2. This small switch reduces reliance on fossil fuels without sacrificing comfort, stretch recovery, or durability in the final product. Our fabric blend is 93% bamboo lyocell and 7% CREORA® bio-based elastane, giving you softness and a fabric that moves with you.

It’s a small swap but with a big impact – and it’s only the beginning. As the innovation evolves, the bio-based proportion of CREORA® is set to increase from 70%3. This is the heartbeat of our philosophy at Bumboo: a step-by-step integration of new technologies, to continually make our bamboo underwear smarter, more sustainable, and ultimately showing that performance fabrics don’t have to cost the Earth.

1Hyosung CREORA® bio-based Spandex Receives First Global SGS Certification

2Recent progress in biobased synthetic textile fibers

3Hyosung Grows Its Portfolio of Fossil Fuel-Alternative Synthetic Fibers

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Size guide – let’s find your perfect fit!

Find your perfect fit with Bumboo

We’re here to make sure your Bumboo undies feel just right — comfy, flattering and made to move with you. Getting the best fit starts with knowing your measurements, and we’re here to walk you through it, step-by-step.

Start with the real you
To get the most accurate fit, we recommend measuring your actual body rather than over clothes. Grab a tape measure and take it slow – this is your moment.

Waist:
Wrap the tape around your natural waistline – that’s the narrowest part of your torso, usually just above your belly button. Keep it snug but not tight.

Hips:
Stand with your feet together and measure around the fullest part of your hips and bum. This is the widest part, so don’t be shy – we want to embrace those curves and find that true-to-you fit!

Now, compare your measurements with our size chart.

Sometimes your waist and hips may sit across two sizes – that’s totally normal! For example, if your waist is 26 inches (a Small) and your hips are 38 inches (a Medium), we’d suggest:

  • Size S for a firmer, snugger fit
  • Size M for a more relaxed feel

Pick based on what makes you feel best – whether you like your knickers to hug or a more gentle-level of support.

Bumboo sizeWaist Hips
XS 6 – 8
34 – 36
2 – 4		24 – 26
61 – 66		34 – 36
86 – 91
S 8 – 10
36 – 38
4 – 6		26 – 28
66 – 71		36 – 38
91 – 96
M10 – 12
38 – 40
6 – 8		28 – 30
71 – 76		38 – 40
96 – 101
L12 – 14
40 – 42
8 – 10		30 – 32
76 – 81		40 – 42
101 – 106
XL14 – 16
42 – 44
10 – 12		32 – 34
81 – 86		42 – 44
106 – 111
2XL16 – 18
44 – 46
12 – 14		34 – 36
86 – 91		44 – 46
111 – 116

A little extra fit advice from us:

  • Between sizes?
    Size up in our Basic bikini and Thongs if you’ve got a curvier figure.
    Size down in our High Rise styles if you’re on the smaller side.
  • Size XL or above?
    Our fabric has amazing stretch and softness – in sizes XL and up, we recommend sizing down for the perfect hold.

Still unsure? Don’t stress! Our team is always here to help you find your Bumboo panty paradise!