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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Serial Killer Strength heavyweight t-shirtSerial Killer Strength heavily muscled axe wielding mascot Headcase looks killer on these T's, and you'd look killer wearing one. If youre looking for a thick, structured tee thats also super soft and breathablelook no further! The unisex garment dyed heavyweight t shirt ticks all the boxes and is made of 100% ring spun cotton. 100% ring spun cotton Fabric weight: 6. 1 oz yd (206. 8 g m) Garment dyed Relaxed fit 7 8 double needle topstitched collar
Serial Killer Strength heavily muscled axe wielding mascot Headcase looks killer on these T's, and you'd look killer wearing one.If you’re looking for a thick, structured tee that’s also super soft and breathable—look no further! The unisex garment-dyed heavyweight t-shirt ticks all the boxes and is made of 100% ring-spun cotton. • 100% ring-spun cotton
• Fabric weight: 6.1 oz/yd² (206.8 g/m²)
• Garment-dyed
• Relaxed fit
• 7/8″ double-needle topstitched collar
• Twill-taped neck and shoulders for extra durability
• Double-needle armhole, sleeve, and bottom hems
This product is made especially for you as soon as you place an order, which is why it takes us a bit longer to deliver it to you. Making products on demand instead of in bulk helps reduce overproduction, so thank you for making thoughtful purchasing decisions!
Size guide
| WIDTH (inches) | LENGTH (inches) | SLEEVE CENTER BACK (inches) | |
| S | 18 ¼ | 26 ⅝ | 16 ¼ |
| M | 20 ¼ | 28 | 17 ¾ |
| L | 22 | 29 ⅜ | 19 |
| XL | 24 | 30 ¾ | 20 ½ |
| 2XL | 26 | 31 ⅝ | 21 ¾ |
| 3XL | 27 ¾ | 32 ½ | 23 ¼ |
| 4XL | 29 ¾ | 33 ½ | 24 ⅝ |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
If you have ADHD You need this
Size: 2 Fl Oz (Pack of 1), Size: 2 Fl Oz (Pack of 1)
This stuff works really good. If you are having a problem with ADHD and cannot get medication for whatever reason get this stuff.
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Reviewed in the United States on April 23, 2026
★★★★★ 3
It was ok
Size: 2 Fl Oz (Pack of 1)
It tastes better than all the alternatives I’ve tried, but it makes me wonder if it is more sugar and less potency because I didn’t feel a noticeable difference after taking it like I had with some other brands. It also is a much fainter blue than the others I’ve taken…like it is possibly less concentrated(?) Anyhow, I could tolerate the flavor right out of the dropper unlike any others I’ve tried, but I’ll probably try a new brand next time as this wasn’t my favorite.
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Reviewed in the United States on August 14, 2025
★★★★★ 5
Great so far
Size: 2 Fl Oz (Pack of 1)
I started using this product about a week ago. I take it first thing in the morning on an empty stomach. So far and in the short amount of time I can tell that I'm having more constant energy that I had in awhile. Still to early to speak about other changes but I'm sure I will see more as the time goes. Definetly worth the buy.
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Reviewed in the United States on July 26, 2025
★★★★★ 5
Wow!
Size: 2 Fl Oz (Pack of 1), Size: 2 Fl Oz (Pack of 1)
I only started with a half dose and I can definitely feel the mental clarity. I feel hyper focused. My energy level did not necessarily change yet, but my focus definitely did. As I work my way up to a full dose I’m sure the energy levels will change. I went straight water with it and did not notice any kind of taste. The dropper is marked with dosage so the ease-of-use is great.
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Reviewed in the United States on July 9, 2025
★★★★★ 2
Leaky packaging
Size: 2 Fl Oz (Pack of 1)
Bottle leaked everywhere in package, smelled like cleaning solution.
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Reviewed in the United States on December 17, 2025