Choosing the right underwear isn’t just about style and aesthetics – comfort, durability, and environmental impact are also important considerations. When comparing fabrics, bamboo and cotton are two of the most popular options. Our bamboo vs cotton comparison breaks down the key differences to help you decide which is best for you.
One of the biggest advantages of bamboo underwear is its exceptional softness. Bamboo fibres are naturally smooth and round, which reduces friction against the skin[1]. Many bamboo fabrics – including bamboo lyocell – are also made by refining the natural fibres into long, silky threads. During the process, the fibres are purified and spun into long, fine filaments that are extremely smooth and uniform. Aligning these threads keeps all the softness intact while ensuring the fabric is strong and durable enough for everyday wear[2].
Cotton is also a soft textile, but cotton fibres have microscopic protrusions and rough edges. High-quality cottons, such as Pima or Egyptian cotton, negate some of this roughness.
Observation: Both materials can provide comfort. Bamboo tends to feel smoother straight from production, but high-quality, premium cotton can provide similar softness.
Bamboo fabric has excellent moisture-wicking properties. It can absorb up to three times its weight in water, drawing moisture away from the skin and helping you stay dry and comfortable[3]. This makes bamboo underwear particularly suited for active lifestyles or warm climates.
Cotton is breathable but retains moisture. This can leave the skin feeling damp during exercise or in hot weather.
Observation: Bamboo generally provides more effective moisture control than conventional cotton.
Bamboo fibres are strong and resilient, helping underwear maintain shape and softness after repeated washing. Cotton is also durable, especially high-quality varieties. Lower-grade cotton may shrink or lose softness over time, depending on fibre quality and garment construction.
Observation: Both materials are capable of long-lasting wear, with performance depending on the quality of fibres and the garment itself.
Bamboo is a fast-growing, renewable resource. Some species can grow up to one meter per day and regenerate from existing root systems, reducing the need for replanting. Bamboo cultivation typically requires minimal water, with the plant capable of relying on rainfall. No fertilisers or pesticides are required, as the plant produces natural antimicrobial agents (known as bamboo kun) and sources nutrients from its leaf litter’s decomposition. Bamboo also has a strong carbon absorption potential.
Cotton often requires fertilisers and pesticides in conventional cultivation and is more water-intensive. Conventional cotton production can use over 20,000 litres of water per kilogram of fibre, making water efficiency a notable difference between the two materials. Organic cotton reduces chemical use but still requires significant amounts of water and land.
Observation: Bamboo generally has a lower environmental footprint, and sustainably grown cotton is a more responsible choice over conventional cotton.
[1] Effective Preparation of Bamboo Cellulose Fibers in Quaternary Ammonium/DMSO Solvent
[2] A Review on Preparatory Processes of Bamboo Fibres for Textile Applications
[3] Comparison of Antibacterial and Some Physical Properties of Knitted Fabrics Produced from Bamboo, Cotton and Viscose Fiber
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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:
Pick based on what makes you feel best – whether you like your knickers to hug or a more gentle-level of support.
| Bumboo size | Waist | 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 |
| M | 10 – 12 38 – 40 6 – 8 | 28 – 30 71 – 76 | 38 – 40 96 – 101 |
| L | 12 – 14 40 – 42 8 – 10 | 30 – 32 76 – 81 | 40 – 42 101 – 106 |
| XL | 14 – 16 42 – 44 10 – 12 | 32 – 34 81 – 86 | 42 – 44 106 – 111 |
| 2XL | 16 – 18 44 – 46 12 – 14 | 34 – 36 86 – 91 | 44 – 46 111 – 116 |
A little extra fit advice from us:
Still unsure? Don’t stress! Our team is always here to help you find your Bumboo panty paradise!
