Weird Duck Skull No. 004 – Rider Sweatshirt
Weird Duck Skull No. 004 – Rider Sweatshirt
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Shipping & Returns
Shipping & Returns
Mummyduck Customs is designed in Helsinki, Finland. To keep delivery times short and shipping costs reasonable, our products are printed and fulfilled on demand by partner facilities in the USA, EU, and Japan, depending on the item and your delivery address. Orders to EU addresses are fulfilled from our EU facility where possible; some larger sizes are only printed in the USA, so those specific items may take a little longer to reach EU customers.
Processing and delivery times
Orders are typically printed and shipped within 2-6 business days. You will receive a shipping confirmation email with tracking information once your order leaves our facility. Actual transit time depends on your location and the carrier; please allow extra time for the postal service to scan and process tracking updates after pickup.
Shipping costs
Shipping costs are calculated and shown at checkout based on your delivery address, the items ordered, and the fulfillment location. US customers are charged standard US domestic shipping rates when their order ships from our US facility; EU customers are charged EU shipping rates when their order ships from our EU facility.
International orders and customs
We ship to most countries. Orders shipped internationally may be subject to import duties, taxes, or customs fees charged by your country upon arrival; these are the responsibility of the customer and are not included in our shipping charges or controlled by us. We are not responsible for delays caused by customs processing. If your country is not available at checkout, contact us at harri@mummyduck.com and we will do our best to add it.
Packaging
Apparel (t-shirts, sweatshirts, hoodies) ships in a protective plastic bag. Mugs and similar items ship in a cardboard box.
Lost, damaged, or delayed packages
If your package is lost, stolen, or arrives damaged, contact us at harri@mummyduck.com with your order number and we will arrange a replacement or resolve the issue.
Materials
Materials
Say hi to the go-to choice for versatile comfort! Made from 50% cotton and 50% polyester, this sweatshirt offers softness, warmth, and enduring quality. Air-jet spun yarn ensures a gentle touch on your skin, while the quarter-turned design keeps it crease-free.
- 50% cotton, 50% polyester
- Fabric weight: 8.0 oz/yd² (271 g/m²)
- Pre-shrunk
- 1x1 athletic rib-knit collar with spandex
- Air-jet spun yarn with a soft feel
- Double-needle stitched collar, shoulders, armholes, cuffs, and hem
- Quarter-turned to avoid crease down the middle
- Blank product sourced from Nicaragua, El Salvador or Honduras
This product is made on demand. No minimums.
- Traceability:
- Knitting—Honduras, Bangladesh
- Dyeing—Honduras, Bangladesh
- Manufacturing—Nicaragua, Honduras, Bangladesh, or El Salvador
- Contains 0% recycled polyester
- Contains 0% dangerous substances
- This item releases plastic microfibers into the environment during washing
Dimensions
Dimensions
Pro tip! Measure one of your products at home and compare with the measurements you see in this guide.

A Length
Place the end of a measuring tape beside the collar at the top of the garment (high point shoulder). Pull the tape to the bottom of the item.
B Width
Place the end of a measuring tape at one side of the chest area and pull the tape across to the other side of the product.
C Sleeve length
Place the end of a measuring tape at the center back of the collar, then pull the tape along the top seam of the sleeve. When you get to the shoulder hold the tape in place at the shoulder and continue to pull down the sleeve until you reach the hem of the sleeve.
Size chart
| SIZE LABEL | LENGTH | WIDTH | SLEEVE LENGTH |
| S | 27 | 20 | 33 ½ |
| M | 28 | 22 | 34 ½ |
| L | 29 | 24 | 35 ½ |
| XL | 30 | 26 | 36 ½ |
| 2XL | 31 | 28 | 37 ½ |
| 3XL | 32 | 30 | 38 ½ |
| 4XL | 33 | 32 | 39 ½ |
| 5XL | 34 | 34 | 40 ½ |
Size chart
| SIZE LABEL | LENGTH | WIDTH | SLEEVE LENGTH |
| S | 68.6 | 50.8 | 85 |
| M | 71 | 56 | 87.6 |
| L | 73.7 | 61 | 90.2 |
| XL | 76.2 | 66 | 92.7 |
| 2XL | 78.7 | 71 | 95.3 |
| 3XL | 81.3 | 76.2 | 97.8 |
| 4XL | 83.8 | 81.3 | 100.3 |
| 5XL | 86.4 | 86.4 | 103 |
Care Instructions
Care Instructions

Not for everyone. That is rather the point.
Weird Duck Skull No. 004 belongs to riders who are comfortable being exactly who they are, even when the correct explanation would take too long. Dark, funny and oddly specific, it rewards the sort of confidence that does not need a committee.
Part of Mummyduck's limited skull series, designed in Helsinki for the few who see it and immediately understand.
Why you'll wear it
- Feels right when ordinary motorcycle clothing feels suspiciously well behaved
- Gives cooler workshop hours a layer with actual character
- Works at meets without pretending you joined anybody's club
- Recognisable to the right people and confusing to everyone else
- Lets the strange duck handle unnecessary introductions
The details
- No. 004 in the limited Weird Duck Skull series
- Designed in Helsinki
Size guide
Inches, length / width:
S: 27 / 20
M: 28 / 22
L: 29 / 24
XL: 30 / 26
2XL: 31 / 28
3XL: 32 / 30
4XL: 33 / 32
5XL: 34 / 34
Centimetres, length / width:
S: 68.6 / 50.8
M: 71.1 / 55.9
L: 73.7 / 61
XL: 76.2 / 66
2XL: 78.7 / 71.1
3XL: 81.3 / 76.2
4XL: 83.8 / 81.3
5XL: 86.4 / 86.4
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Sweatshirt
Built for the ride, not the showroom
Mummyduck doesn't make apparel for people trying to look fast standing still. This sweatshirt is for the actual ride — and everything before and after it. Coffee first. Then the road. The sweatshirt doesn't care which one fixed your morning.
What it's made of
Gildan 18000, 50% cotton / 50% polyester, 8.0 oz/yd² — heavy enough to mean something, soft enough you'll forget you're wearing it. Air-jet spun yarn for a clean feel against the skin, pre-shrunk so the fit doesn't lie to you later. Rib-knit collar with spandex, double-needle stitched at the collar, shoulders, armholes, cuffs, and hem — the places that actually wear out first. Quarter-turned construction, so no crease running down the middle like it's been folded in a drawer for a year. This is the one we'd actually wear, which is the only reason it's on the site.
Why the wait
Made on demand, no minimums. Yours gets built the moment you order it — that's why it takes a little longer, and why there's no stack of unsold hoodies sitting in a warehouse somewhere.
Where it's been
Knitted and dyed in Honduras and Bangladesh, put together in Nicaragua, Honduras, Bangladesh, or El Salvador. Zero recycled polyester, zero hazardous substances. One honest note: like most synthetic-blend fabric, this releases small plastic microfibers when washed — wash cold, wash less, it helps.
Required disclosure (EU GPSR)
EU law (General Product Safety Regulation, effective December 13, 2024) requires manufacturer and/or EU representative contact: harri@mummyduck.com