Green TENCEL™ Lyocell Fly Boxer Brief

$56Made in Japan
Color : M.Green
Size :
Best for waist: 36 – 39 in (92 – 100 cm)
Body Measurement
S M L XL XXL
your Waist inches 27 - 30 30 - 33 33 - 36 36 - 39 39 - 43
cm 68 - 76 76 - 84 84 - 92 92 - 100 100 - 108

Waist Measurement

Measure around your waist, slightly below your natural waist, where you normally wear your pants. Insert your forefinger between the tape and your body to allow ease in fit.

Fit Tip

Always go up one size if you are inbetween two sizes.

International Sizing
Our Size USA Italy UK/AUS DE Japan
S XS 46 36 XS S
M S 48 38 S M
L M 50 40 M L
XL L 52 42 L XL
XXL XL 54 44 XL XXL

Example

If you wear a size M in a US brand, then you'll need a size L for Tani. 

Guide
Quantity:
 More payment options
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Australia Shipping Details
  • Standard ( 7–12 days ) - Free over $140
  • Express (2–4 days) Free over $650, or at checkout

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Easy Returns Details
Start a return within 30 days of delivery.
Color: M.Green, Size: XL

  • Premium boxer briefs with fly and breathable fabric, designed for all-day comfort
  • Made in Japan with ultra-soft, stretchy fabric for smooth comfort
  • Biodegradable fibers & recycled elastane
  • Fabric: 5% TENCEL™ Lyocell x Micro, 5% Roica EF (recycled elastane)

Japanese Craft, Natural Comfort

This collection uses eco-friendly TENCEL™ Lyocell, botanically dyed in Japan with colors derived from flowers. The fabric is knitted in Wakayama, with garments sewn in Toyama and Sasebo. Designed for both loungewear and underwear, the pieces are relaxed, breathable, and soft—crafted for effortless comfort and timeless style.

All Your Questions, Answered
1. Are Tani products authentic?
Yes — all Tani products come with our official tags and labels. Most are made with TENCEL™, so you’ll also see their co-branded hang tag — something only trusted brand partners can use. And just to be clear: we’re now the sole distributor of TANI USA, with no third parties involved. You’re getting the real deal, straight from us.
2. Can I return or exchange it?
Yes, absolutely. Returns and exchanges are free within 30 days of delivery — no stress, no hassle.
3. Care instructions?
Made with delicate, ultra-soft fibres:
  • Machine wash cold, gentle cycle
  • Turn inside out and use a mesh laundry bag
  • Avoid washing or tumble drying with rough items (like jeans)
  • Air dry for best results, or tumble dry low with care


GQ Forbes ELLE Men's Health 25ans Liv

All Natural

GREEN collection is borne out of the hope to create a soft, easy care material that incorporates sustainable fibre, with natural dye technology. 

The key material of the GREEN collection is Tencel® lyocell. The fibre is generated from the bark of eucalyptus tree in a closed loop production process by the reputed Austrian company Lenzing, known for the conservation efforts.

A small percentage of ROICA recycled elastane is then added during the knitting of the fabric in Wakayama prefecture in Japan, giving a soft stretch to the fabric.

All Your Questions, Answered
1. Are Tani products authentic?
Yes — all Tani products come with our official hang tags and labels. Since most of our items are made with TENCEL™, you’ll also see TENCEL’s own hang tag attached. Only brands that work closely with TENCEL can get those. And just to note: we are now the sole distributor of TANI USA, with no third-party involved — so you're getting the real deal, direct from us.
2. Can I return or exchange it?
Yes, absolutely. Returns and exchanges are free within 30 days of delivery — no stress, no hassle.
3. Where are your products made?
Most of our pieces are made in China and Japan, in factories we’ve built close relationships with. They’re BSCI-certified, so fair and ethical working conditions are a priority. We also use Oeko-Tex® certified fabrics — meaning they're safe on your skin and better for the planet too.
4. Care instructions?
Made with delicate, ultra-soft fibres:
  • Machine wash cold, gentle cycle
  • Turn inside out and use a mesh laundry bag
  • Avoid washing or tumble drying with rough items (like jeans)
  • Air dry for best results, or tumble dry low with care


GQ Forbes ELLE Men's Health 25ans Liv

Customer Reviews

Based on 17 reviews
94%
(16)
6%
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W
Wayne P.
SUPERB product!

Far the most comfortable underwear I have ever worn. The Silktouch Tencel fabric is incredibly soft yet with enough stretch to never bind. The waistband itself doesn't roll under any circumstances. Well done!

C
Carol L.
Highly recommended!

Very soft and lightweight!

M
Mirko P.
Excellent!

The boxer shorts I bought are really good quality. Well finished, made of a nice fabric and pleasant to the touch. Above all, they are very comfortable to wear. I am very satisfied with this item and will buy more Tani garments in the future.