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Men's Trunk / Monster Mash Men's Trunk / Monster Mash Men's Trunk / Monster Mash Men's Trunk / Monster Mash Men's Trunk / Monster Mash Men's Trunk / Monster Mash
4.9
Rated 4.9 out of 5 stars
3,329 Reviews

Monster Mash Men's Trunk

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  • Star IconUltra soft pin-hole BottleBlend® fabric
  • Star Icon Made from up to five plastic bottles
  • Star Icon Sanitized® bacteria and odour control

Choose Size: ${ chosen_size_abbreviated }

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Same day dispatch if you order before 1pm AEST

This eerie design was concocted by our creepy creative, Phil Ramskill and inspired by vintage Halloween masks. Each style features a mash of all your favourite monster classics and a special glow-in-the-dark waistband that is guaranteed to give you the chills!
  • Ultra soft pin-hole BottleBlend® fabric
  • Made from up to five plastic bottles
  • Sanitized® bacteria and odour control
  • 4cm band with plush inner microfleece
  • Lightweight 160 gsm for versatility and comfort
  • 88% Recycled Poly
  • 12% Spandex
  • Tagless with printed care label
  • Made ethically and sustainably in China
  • THE STYLE: This best-selling style is the perfect all-rounder! Created from BottleBlend®, our very own recycled material, containing up to five plastic bottles. Flatlock seams for comfort and an inseam length of 15cm to reduce ride-up and eliminate cheeky chafe.
  • THE FIT: Each of our undies are made to a global standard. They are true-to-size, so order whatever size you would typically order for shorts. See our size guide.
  • THE MODEL: ${ chosen_product_model_description }

Each pair of Knobbys will arrive in a custom designed, certified kraft paper package or a sealed paper pouch and postage bag made with cornstarch, which is 100% compostable!

All our Australian printed papers and cardboards are recyclable, FSC certified and made carbon neutral, because we give a shit.

Our mission is to be the most sustainable underwear brand in the world.

FREE Standard Domestic Shipping for orders over $100

$9.50 Standard Domestic Shipping for orders under $100

Order before 1pm AEST on weekdays and we'll dispatch the same day!

Returns

Get in touch with our Support Ninjas within 30 days of receiving your Knobbys if you'd like to organise an exchange, refund, coupon or credit! More details

Men's Trunk / Monster Mash
Monster Mash Men's Trunk | ${ chosen_size_abbreviated } ${ chosen_product_price | money }
Lightbulb Icon

Unique
Designs

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Unbeatable
Comfort

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Sustainably
Made

The Design Details
"Monster Mash" by Knobby (Artist Inhouse / Phillip Ramskill)

Get The Full Collection

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New Product 12% OFF
Men's Trunk & Sock Pack / Monster Mash
4.9
Rated 4.9 out of 5 stars
3,329 Reviews

Monster Mash

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$41 Members

Customer Feedback

4.9
Rated 4.9 out of 5 stars
Based on 3,329 reviews
Total 5 star reviews: 3.1k Total 4 star reviews: 170 Total 3 star reviews: 13 Total 2 star reviews: 7 Total 1 star reviews: 12
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3,329 reviews
  • Simon M.
    Verified Buyer
    Rated 5 out of 5 stars
    10/25/24
    Awesome design

    Awesome design super comfortable I think I have a serious knobbys addiction now over 50 + socks and the tshirt love your products

  • Anthony C.
    Verified Buyer
    Rated 5 out of 5 stars
    10/25/24
    So cool

    Again another great pair of underwear. Such a cool style and so damn comfy. The hardest decision is which pair to wear.

  • Anthony C.
    Verified Buyer
    Rated 5 out of 5 stars
    10/25/24
    Love them

    Can't say enough of these underwear. The styles are amazing the feel are so comfortable. These are now my got to underwear.

  • Sall S.
    Verified Buyer
    Rated 5 out of 5 stars
    10/25/24
    Great value

    Love the chance to buy out of stock designs at a greatly reduced price. Just get in early as some sizes sell quickly. Wish more of the last 10 years of designs would return too.

  • kym r.
    Verified Buyer
    Rated 5 out of 5 stars
    10/24/24
    Another awesome Halloween design.

    I love Halloween and wanted both designs so bought the 2 pack with the naturals and original bottleblend materials. They're both incredibly comfortable as always and the glow in the dark aspect is fun, especially the starry look of the naturals pair. Very cool 🎃

  • Jamie C.
    Verified Buyer
    Rated 5 out of 5 stars
    10/23/24
    Amazing Amazing

    First pair of men's for me as wife has them and am so comfy and soo impressed

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