Thunderpants Promo Codes and Coupons September 2025

Thunderpants logo

Thunderpants

Thunderpants.co.nz is a New Zealand-based ethical clothing company specializing in organic cotton underwear and basics. They focus on producing comfortable, durable garments made from GOTS-certified organic cotton, manufactured locally in New Zealand with a strong emphasis on fair labor practices and environmental responsibility.

thunderpants.co.nz

Today's Thunderpants discount codes

TOP PICK
Thunderpants logo

10% off

222 uses
high

worked about 1 month ago

10% Off Storewide at Thunderpants
Thunderpants logo

15% off

1525 uses
high

worked about 2 months ago

15% Off Storewide (Minimum Order: $80) at Thunderpants
Thunderpants logo

15% off

828 uses
high

worked 4 months ago

15% Off Your Purchase at Thunderpants
Thunderpants logo

10% off

344 uses
high

worked 6 months ago

10% Off Storewide (Minimum Order: $80) Full Price Items at Thunderpants

Featured Thunderpants Products

Original Plain Black

Original Plain Black

The ultimate undies in the always faithful plain black option. Our Original Thunderpants style first made in 1995! These are a flat fronted style with a soft gusset made from the same soft fabric as the outer garment. If you require extra room in the front you may want to look at our Pouch Fronted garments.   XS 6-  8 S 8-10 M 12-14 L 16-18 XL 20-22 2XL  24-26 3XL  28-30 waist cm 62-72 72-82 82-92 92-102 102-112 112-122 122-132 hip cm 76-86 86-96 96-106 106-116 116-126 126-136 136-146 waist inches 24-28 28-32 32-36 36-40 40-44 44-48 48-52 hip inches 30-34 34-38 38-42 42-46 46-50 50-54 54-58 Fit Fabric Care The original comfy undies that don't go up your bum. This very comfortable full brief sits in the natural crease at the top of the leg and just under the navel. Thunderpants are cut with enough fabric to cover your rear end and the comfy bands hold them in place so even the most active folk will no longer need to readjust their underwear. The Thunderpants fabric is 90% cotton and 10% spandex to give it that super comfy, soft stretchy feel. The waist and leg bands are constructed in the same, lovely fabric eliminating the need for the addition of nasty, grippy elastic and adding to the enjoyment of your Thunderpants experience. All the garments are made locally and lovingly in New Zealand.  To preserve the vibrant colours and life of the fabric we suggest you do not soak or bleach your Thunderpants items. Use a gentle detergent in a cold machine wash and dry your Thunderpants on the line, not in the drier.  Your Thunderpants are not only super comfy but they are designed to withstand some pretty staunch stuff, so get into them and get on out there!

NZD 32.00

Original Plain Vanilla

Original Plain Vanilla

Our Original Adults Thunderpants style first made in 1995! These are a flat fronted style with a soft gusset made from the same fabric soft fabric as the outer garment. If you require extra room in the front you may want to look at our Pouch Fronted garments. The perfect pair of undies to wear under your light coloured clothing. Colour-Me - These Thunderpants can be personalised for you or as a gift by colouring them in using coloured crayons that you can buy here. Alternately if you have your own pens, crayons or fabric paints the world is your oyster, as they say.   XS 6-  8 S 8-10 M 12-14 L 16-18 XL 20-22 2XL  24-26 3XL  28-30 waist cm 62-72 72-82 82-92 92-102 102-112 112-122 122-132 hip cm 76-86 86-96 96-106 106-116 116-126 126-136 136-146 waist inches 24-28 28-32 32-36 36-40 40-44 44-48 48-52 hip inches 30-34 34-38 38-42 42-46 46-50 50-54 54-58 Fit Fabric Care The original comfy undies that don't go up your bum. This very comfortable full brief sits in the natural crease at the top of the leg and just under the navel. Thunderpants are cut with enough fabric to cover your rear end and the comfy bands hold them in place so even the most active folk will no longer need to readjust their underwear. The Thunderpants fabric is 90% cotton and 10% spandex to give it that super comfy, soft stretchy feel. The waist and leg bands are constructed in the same, lovely fabric eliminating the need for the addition of nasty, grippy elastic and adding to the enjoyment of your Thunderpants experience. All the garments are made locally and lovingly in New Zealand.  To preserve the vibrant colours and life of the fabric we suggest you do not soak or bleach your Thunderpants items. Use a gentle detergent in a cold machine wash and dry your Thunderpants on the line, not in the drier.  Your Thunderpants are not only super comfy but they are designed to withstand some pretty staunch stuff, so get into them and get on out there!

NZD 32.00

Original Aniseed

Original Aniseed

These sweet treats are plain tangerine with stripey binding. Tuck into some today! Our Original Thunderpants style first made in 1995! These are a flat fronted style with a soft gusset made from the same soft fabric as the outer garment. If you require extra room in the front you may want to look at our Pouch Fronted garments.   XS 6-  8 S 8-10 M 12-14 L 16-18 XL 20-22 2XL  24-26 3XL  28-30 waist cm 62-72 72-82 82-92 92-102 102-112 112-122 122-132 hip cm 76-86 86-96 96-106 106-116 116-126 126-136 136-146 waist inches 24-28 28-32 32-36 36-40 40-44 44-48 48-52 hip inches 30-34 34-38 38-42 42-46 46-50 50-54 54-58 Fit Fabric Care The original comfy undies that don't go up your bum. This very comfortable full brief sits in the natural crease at the top of the leg and just under the navel. Thunderpants are cut with enough fabric to cover your rear end and the comfy bands hold them in place so even the most active folk will no longer need to readjust their underwear. The Thunderpants fabric is 90% cotton and 10% spandex to give it that super comfy, soft stretchy feel. The waist and leg bands are constructed in the same, lovely fabric eliminating the need for the addition of nasty, grippy elastic and adding to the enjoyment of your Thunderpants experience. All the garments are made locally and lovingly in New Zealand.  To preserve the vibrant colours and life of the fabric we suggest you do not soak or bleach your Thunderpants items. Use a gentle detergent in a cold machine wash and dry your Thunderpants on the line, not in the drier.  Your Thunderpants are not only super comfy but they are designed to withstand some pretty staunch stuff, so get into them and get on out there!

NZD 32.00

What Thunderpants coupons are available today?

We track so many discount codes. Read about today's Thunderpants coupon statistics.

18
Thunderpants deals available today
4
Active Thunderpants codes
10% off
Biggest discount available
Get the best Thunderpants promo codes and coupons that actually work. Our community of sustainability minded shoppers helps you save by testing and sharing:
  • Verified promo codes with live success rates from recent shoppers!
  • Exclusive single-use codes shared by our community (18 active codes).
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  • Deals for those who want extra savings opportunities
  • Insider savings tips from experienced Thunderpants shoppers who know the best deals.

Why TerraCoupons finds better Thunderpants discounts:

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Note: Our community tests every Thunderpants promo code and shares results in real-time. Check success rates and shopping tips in the activity feed to find what works best for your purchase.
Thunderpants logo

15% off

7 uses
medium

worked 7 months ago

Score 15% off with code
Thunderpants logo

20% off

1 uses
medium

worked 4 months ago

Get 20% off with coupon
Thunderpants logo

15% off

40 uses
low

worked over 2 years ago

15% Off Storewide ( All Full-price Items) at Thunderpants
Thunderpants logo

15% off

33 uses
low

worked over 2 years ago

15% Off Select Items at Thunderpants
Thunderpants logo

15% off

24 uses
low

worked almost 4 years ago

15% Off New Stuff at Thunderpants
Thunderpants logo

20% off

38 uses
low

worked over 3 years ago

20% Off Storewide at Thunderpants
Thunderpants logo

15% off

17 uses
low

worked over 3 years ago

15% Off Full Price Items at Thunderpants
Thunderpants logo

20% off

60 uses
low

worked over 3 years ago

20% Off Storewide at Thunderpants

Sustainability Score

82%
Thunderpants demonstrates strong commitment to sustainability through local production, GOTS-certified organic materials, and fair labor practices. They show transparency in their supply chain and manufacturing processes. Areas for improvement include expanding their recycling program and reducing packaging waste. While they have strong animal welfare policies, they could enhance their environmental impact reporting and carbon offset initiatives.

About Thunderpants

4.0 (2)

FAQs

Thunderpants typically runs sales during major holidays like Boxing Day and occasionally offers end-of-season discounts. They also have periodic 'seconds' sales for items with minor imperfections.

Currently, Thunderpants does not offer student discounts, but they do have a loyalty program where customers can earn points for future purchases.

The best time to purchase is during their Boxing Day sale (December 26th) and their mid-winter sale (usually in July). Sign up for their newsletter to be notified of upcoming sales and promotions.

Yes, Thunderpants offers wholesale pricing for bulk orders. Contact their customer service team directly for wholesale inquiries and pricing.

In the past month, Thunderpants has launched 10 new promo coupons for shopper discounts. This indicates that Thunderpants provides regular opportunities for customers to save money on their purchases.

On average, Thunderpants provides 5 discount coupons each month. Based on historical data, the average time between Thunderpants coupon releases every 6 days. However, this rate depends on various factors such as seasonal promotions (Black Friday, Cyber Monday, etc.), product launches, or other marketing initiatives. To stay informed about upcoming discounts and promotions, we recommend checking Thunderpants website regularly, subscribing to email newsletters, and following them on social media.

Thunderpants is offering 4 working store-wide codes, however they are also offering 14 additional discount codes with a best discount of 10% off

terra.coupons is the #1 provider of discount codes for your favorite retailers, such as Thunderpants. As a crowd-sourced platform for coupon codes, we accurate codes for over 10,000 stores. Save time and avoid expired codes by checking terra.coupons for the latest Thunderpants discount codes.

Curated by

Massam A.

Massam A.

Discount Finder

Last updated September 2025

Hailing from the scenic Pacific Northwest, Massam is a former chef turned deal-hunting enthusiast. When he's not tracking down the latest discounts, you'll find him exploring hiking trails or experimenting with sustainable living. He brings the same attention to detail from his culinary days to curating the best promotions for you.

Latest Thunderpants coupon activity

Track real-time Thunderpants coupon activity from our community. See which codes are working right now at Thunderpants, when they were last verified, and any usage restrictions. Our feed helps you quickly find active codes and avoid expired ones.

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