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Sewn from soft ringspun cotton with a roomy unisex fit, the tee is designed for active young entomologists. Reinforced shoulder seams, double-needle hems, and a snag-resistant ribbed collar handle summer firefly hunts, entomology class, science fairs, and rough-and-tumble playdates without losing shape or softness, while the midweight fabric stays cool and breathable all day.
Water-based, child-safe inks press into the fabric for a smooth, lightweight finish that stays soft to the touch and won't crack or peel through countless washes. Machine wash cold inside out, tumble dry low or hang to dry, and avoid bleach and fabric softener to keep the firefly design sharp and the colors deep wash after wash.
Available in summer night colors, this firefly shirt pairs perfectly with shorts, joggers, or jeans for summer firefly hunts, entomology classes, science fairs, and casual everyday wear. A thoughtful gift for boys who love bioluminescent insects and magical summer nights.
Returns
Contact us at hello@gooddszeei.com with your order number and reason for return.
We’ll provide a return shipping label (if applicable) or instructions for sending the item back.
Once we receive and inspect the item, we’ll notify you about the approval of your return.
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Damaged or Defective Items
If your item arrives damaged or defective, please reach out within 7 days of delivery with photos of the issue. We’ll replace it free of charge or issue a full refund, including shipping costs.
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Email us at hello@gooddszeei.com, and we’ll help you make things right, as swiftly as a cheetah!
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Last Updated: October 25, 2025
| XS | S | M | L | XL | 2XL | |
|---|---|---|---|---|---|---|
| Width, in | 16.00 | 18.00 | 20.00 | 22.00 | 24.00 | 26.00 |
| Length, in | 27.00 | 28.00 | 29.00 | 30.00 | 31.00 | 32.00 |
| Sleeve length, in | 7.99 | 8.23 | 8.50 | 8.74 | 9.02 | 9.25 |
| Size tolerance, in | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 | 1.50 |
| XS | S | M | L | XL | 2XL | |
|---|---|---|---|---|---|---|
| Width, cm | 40.64 | 45.72 | 50.80 | 55.88 | 60.96 | 66.04 |
| Length, cm | 68.58 | 71.12 | 73.66 | 76.20 | 78.74 | 81.28 |
| Sleeve length, cm | 20.30 | 20.90 | 21.60 | 22.20 | 22.90 | 23.50 |
| Size tolerance, cm | 3.81 | 3.81 | 3.81 | 3.81 | 3.81 | 3.81 |
Each gooddszeei T-shirt features vibrant, high-quality animal-inspired prints designed with creativity and comfort in mind. Our designs are exclusive and not mass-produced, so you’ll always stand out.
We use premium 100% cotton or cotton-blend fabrics that are soft, breathable, and durable — perfect for everyday wear in the Australian climate.
Each product page includes a detailed size chart. We recommend checking your measurements before purchasing to ensure the best fit.
Turn your T-shirt inside out, wash in cold water, and avoid using bleach. Hang to dry or tumble dry on low for best results.
Yes! Our prints use high-quality inks and printing techniques that resist fading even after multiple washes.
Absolutely! We offer fast and reliable delivery all over Australia, including rural areas.
Orders are usually processed within 1–2 business days and delivered within 5–8 business days depending on your location.
Yes. We offer easy 30-day returns or exchanges for unworn, unwashed items with tags still attached. Visit our Returns Policy page for details.
We occasionally accept custom requests for animal-print variations or bulk orders. Feel free to contact our support team for more information.
You can reach us via our contact form or email at support@gooddszeei.com. Our friendly team will respond within 24 hours.
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