Name: Bamboo Men's Active Trunks
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NZ Nature

Bamboo Men's Active Trunks

$16.50

Men's active trunks in a soft stretch knit that keeps its shape wash after wash.

Everyday underwear that stays comfortable through a long day. Breathable and supportive enough for a workout as well as the office.

95% bamboo viscose, 5% spandex.

Trunk cut, with the support of a brief and the look of a boxer.

Shop with confidence

Fast and reliable delivery

Easy returns

Real people, ready to help

About Bamboo Viscose

Bamboo viscose is often compared to the softest cotton only stretchier. Comfortable and breathable, it's a natural fit for warmer weather and transition seasons. It's also machine washable, so it's as easy to care for as it is to wear.

Insulating

Breathable

Crease resistant

Absorbent

UV protection

Naturally soft with gentle stretch
Oeko-Tex® Standard 100 certified fibre

Soft against the skin and naturally breathable, it helps keep you comfortable across changing temperatures.

Bamboo viscose is valued for its softness, breathability and fluid drape. Comfortable and easy to wear, it's well suited to everyday dressing.

A gentle machine wash is usually all that's needed to keep it looking its best. Always refer to the care label attached to your garment.

Designed to sit close to the body for a streamlined fit that layers easily under other garments.

Orders are dispatched from New Zealand with tracked and insured delivery, with USPS completing delivery within the United States.
US tariffs and import taxes are included in our prices, so the price you see is the price you pay. You shouldn't receive a further bill on delivery.

Orders within New Zealand are sent by trusted courier services with full tracking and insurance included. We'll send tracking details as soon as your order leaves us, so you can keep an eye on its progress.
GST is included in all New Zealand prices. If your parcel is genuinely lost in transit, we'll replace or refund it.

If your purchase isn't quite right, you can return it within six months for an exchange, replacement or refund. Simply return it in as-new condition with its original tags and packaging.

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Layer with

Our shoppers often pair the Bamboo Men's Active Trunks with these items.

Everyday Comfort

Soft, with a little natural stretch
Breathable and easy to care for
Oeko-Tex Standard 100 certified fibre

Often described as softer than cotton and a touch stretchier, bamboo viscose is an easy fabric to live in. It breathes well and washes simply, which makes it a natural pick for warmer days, sleepwear and everyday basics.

About NZ Nature Bamboo Viscose

Our bamboo viscose garments are part of New Zealand Nature's own-label collection, created to offer comfortable, easy-to-wear clothing made from natural fibre-based fabrics. The bamboo used to create the fibre is grown in Sichuan Province, China, where bamboo has been cultivated for generations and thrives in the local climate. The bamboo is grown without pesticides or chemical fertilisers and is certified to Oeko-Tex® Standard 100 Class I, one of the world's most recognised standards for testing harmful substances.

Easy care, easy wear

Bamboo viscose is known for its softness, breathability and everyday comfort.

The smooth fibres create a fabric that feels gentle against the skin while remaining lightweight and easy to wear. Bamboo viscose is also relatively easy to care for, making it a practical choice for everyday garments.

Simple, gentle laundering will help maintain its softness and drape.

Care Instructions

Please refer to the care label attached to your garment. Machine wash on a gentle cycle using cold or warm water. Wash with similar colours and avoid bleach. Line dry where possible and use a cool iron if needed.

Gentle machine wash

Do not bleach

Air dry

Men's Body Size Guide (inches)

Order by your body measurements. These are not garment measurements.

Size to order	S	M	L	XL	XXL	3XL
Chest (inches)	36.5-38	38.5-40	40.5-43	43.5-46	46.5-49	49.5-52
Waist (inches)	32.5-34	34.5-36	36.5-39	39.5-42	42.5-45	45.5-48

How to measure

Measure yourself rather than a garment. Use a flexible tape measure over underwear or close-fitting clothing, keeping it level and snug but not tight. If you fall between two sizes, order the larger.

Chest - Measure around the widest part of your chest, just under your arms.
Waist - Measure around your natural waistline, with your arms by your side.

Delivery & Shipping

We carefully pack and dispatch all orders from Nelson, New Zealand.

Tracking details are emailed once your order has been dispatched.
Shipping costs are calculated at checkout based on your location and order size.
Most New Zealand orders arrive within 1–3 business days. International delivery times vary by destination.
Rural deliveries and customs processing may add additional time.
If your parcel is delayed or you need assistance, our customer service team is happy to help.

Payments, Currencies & Taxes

We offer secure online payments in NZD, AUD, GBP and USD. Your delivery address sets the currency you pay in and the taxes that apply.

Orders are processed once payment has been received and confirmed.
New Zealand prices include 15% GST.
Australian prices include 10% GST.
UK prices include VAT. On orders over £135 before VAT, VAT is paid on delivery instead, so we take it off at checkout.
US prices include US tariffs and import taxes.
Prices for other countries are in NZD and don't include New Zealand GST. Local duties, taxes or handling fees may apply and are payable by the recipient.

If you need to make changes to your order, please contact us as soon as possible and we'll do our best to assist before dispatch. If you have any questions about taxes, duties or shipping to your country, our team is always happy to help.

Our quality guarantee

We carefully select products made from premium natural fibres and stand behind their quality.

Every product we sell is guaranteed. If something is faulty, damaged or isn't what you ordered, contact us at returns@nznature.co.nz and we'll put it right. A photo helps us sort it quickly.

If you have any concerns about a product, we're always here to help.

Returns, exchanges & refunds

We understand that sometimes a product isn't quite right.

Return within six months of your order date.
Items should come back As New, with tags and original packaging. Try something on as you would in a shop, but not worn beyond that.
Return postage is at your own cost. We don't charge you postage to send a replacement out.
Refunds go to your original payment method. The original delivery charge isn't included.
For an exchange of the same value it's a straight swap. Where the values differ, we refund your card and recharge for the new item.
Clearance items have a shorter window, and seconds and a few personal hygiene products can't be returned for change of mind. Where this applies, it's noted on the product page.

Please enclose the returns form that came with your order. If you're unsure about sizing or fit before you order, get in touch and we'll help you choose.

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Bamboo Men's Active Trunks

Softer than cotton

Bamboo viscose is known for its exceptional softness. Made from regenerated cellulose derived from bamboo, the fibre is smooth, lightweight and comfortable against the skin, with a gentle stretch that moves with you.

Lightweight, breathable and soft against the skin, it's a natural choice for everyday comfort, especially in warmer weather and the seasons in between.

An older woman with short blonde hair smiles while kneeling on a yoga mat on a wooden floor in a studio, wearing a dark teal long-sleeve top and black pants.

FAQs

Everything you need to know about choosing, wearing and caring for natural fibres, plus our sizing, exchanges and delivery.

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Yes. Every product page includes a size guide with detailed measurements for that specific garment, along with a how-to-measure section so you can compare against a piece you already own. Sizing can vary slightly between styles, so we recommend checking the guide for the item you're looking at rather than assuming your usual size. If you're between sizes or unsure about fit, email sales@nznature.co.nz and our team will help you find the right one.

Yes. You can return an item for exchange within six months of the order date, provided it's unworn, unwashed and in its original condition with tags attached. Fill in the returns form enclosed with your order and send it back to us. Return postage is at your own cost, but we don't charge you postage to send the exchange item out. If the replacement is the same price, it's a straightforward swap. If the values differ, we refund your original payment method and recharge for the new item. If you're not sure which size to go for, email sales@nznature.co.nz with your order number and we'll help you work it out first.

Selected products are eligible for multi-buy savings. Purchase the qualifying quantity and the advertised discount will be applied automatically in your cart. Mix and match colours and sizes unless otherwise stated. Terms and exclusions may apply.

Many are, and the product page tells you which. Anything made here carries an 'NZ Made' tag — that includes our Merino from Weft and Essence Lingerie, our sheepskin slippers and boots from EB Tolley and Furmoo, and skincare from Nude Kiwi.

Some of our range is made offshore, and we're upfront about that. Silk and bamboo, for example, aren't fibres produced in New Zealand, so those garments are made overseas to our specification. We're a New Zealand company and we make here wherever we sensibly can.

If you want to know the origin of a specific item, look for the NZ Made tag on the product page, or ask us and we'll tell you.

It comes down to what you want the layer to do.

Silk is the lightest option and close to invisible under clothing. It adds genuine thermal warmth without any bulk, which makes it ideal under work clothes, under a shirt, or for travel. Choose silk when you want warmth nobody can see.

Merino is the warmest and most hard-wearing. Our superfine and ultrafine Merino sits between 16.9 and 18 microns, so it feels soft rather than scratchy, and it's naturally odour-resistant and machine washable. It's the right choice for hiking, genuinely cold days, and everyday wear.

Bamboo is soft, stretchy and breathable, and it's our most affordable range. It's better suited to everyday comfort and sleepwear than to serious warmth.

Still unsure? Email sales@nznature.co.nz and tell us what you'll be wearing it for.

You can reach our team by emailing sales@nznature.co.nz or calling +64 3 9700 441 during business hours (Monday–Friday, 9am–5pm NZST). We also have a contact form on our website. We aim to respond to all enquiries within one business day.

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