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  • Have a Killer Day horror t-shirt featuring a pastel knife with hearts and a smiley face on a black tee.
  • Have a Killer Day horror t-shirt featuring a pastel blue knife with hearts and a smiley face.
  • Have a Killer Day horror t-shirt featuring a pastel knife with hearts and a smiley face on a black tee.
  • Have a Killer Day horror t-shirt with a pastel blue knife and cheerful lettering.

Have a Killer Day horror t-shirt

Regular price $45.00
Unit price per
Shipping calculated at check out. Ships worldwide.
Color:
Size
The friendliest threat you'll ever receive. This tee features a pastel blue knife decorated with hearts and a smiley face, paired with the most cheerfully sinister send-off around. Perfect for true crime fans, dark humor lovers, and anyone whose kindness has an edge.

This t-shirt is everything you've dreamed of and more. It feels soft and lightweight, with the right amount of stretch. It's comfortable and flattering for all.

• 100% combed and ring-spun cotton (Heather colors contain polyester)
• Fabric weight: 4.2 oz./yd.² (142 g/m²)
• Pre-shrunk fabric
• Side-seamed construction
• Shoulder-to-shoulder taping
• Blank product sourced from Nicaragua, Mexico, Honduras, or the US

Disclaimer: The fabric is slightly sheer and may appear see-through, especially in lighter colors or under certain lighting conditions.

• Traceability:
- Weaving—India, South Korea
- Dyeing—El Salvador, California
- Manufacturing—Nicaragua, Mexico, Honduras, or the US
• Contains 0% recycled polyester
• Contains 0% dangerous substances

Age restrictions: For adults
EU Warranty: 2 years

In compliance with the General Product Safety Regulation (GPSR), Oak inc. and SINDEN VENTURES LIMITED ensure that all consumer products offered are safe and meet EU standards. For any product safety related inquiries or concerns, please contact our EU representative at gpsr@sindenventures.com. You can also write to us at 123 Main Street, Anytown, Country or Markou Evgenikou 11, Mesa Geitonia, 4002, Limassol, Cyprus.

Size guide

  LENGTH (inches) WIDTH (inches) CHEST (inches)
S 28 18 34-37
M 29 20 38-41
L 30 22 42-45
XL 31 24 46-49
2XL 32 26 50-53
3XL 33 28 54-57
4XL 34 30 58-61
  LENGTH (cm) WIDTH (cm) CHEST (cm)
S 71.1 45.7 86.4-94
M 73.7 50.8 96.5-104.1
L 76.2 55.9 106.7-114.3
XL 78.7 61 116.8-124.5
2XL 81.3 66 127-134.6
3XL 83.8 71.1 137.2-144.8
4XL 86.4 76.2 147.3-155

FAQ

Find the most frequently asked questions below.
  • Every order is printed just for you, so it takes about 2–5 business days to make, then standard shipping time on top of that (usually a few days to 2 weeks depending on where you are in the world).

  • Different products are made at different facilities, so if you ordered, say, a tee and a print together, they may ship separately and arrive on different days. Totally normal — nothing's missing!

  • Email me within 10 days of delivery with a clear photo of the issue and your order number, and I'll get it sorted — usually a free reprint or refund. Printful covers manufacturing errors at no cost to you.

  • Because everything is made to order, I unfortunately can't accept returns for change of mind or sizing mistakes. Please double-check size guides before ordering!

  • Totally normal! That's leftover from the printing process and disappears after the first wash. Promise your shirt is fine.

  • First, check with your neighbours and your local post office — couriers sometimes leave parcels in odd spots. If it still doesn't turn up after 48 hours, message me with your order number.

  • If the order hasn't gone into production yet, yes — message me ASAP. Once it's printed and shipped, I can't change the destination, and re-shipping a returned parcel costs extra.

  • Printful runs facilities in the US, Mexico, Canada, the UK, Europe, Australia, and Japan. Your order ships from whichever facility is closest to you, which keeps shipping fast and emissions lower.

Made for people held together by snacks, sarcasm, and an aggressive amount of caffeine.