Harmonic oscillator by argerion Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
Harmonic oscillator by argerion Unisex T-shirt, Sweatshirt, Hoodie, Long Sleeve Tee
Made-to-Order Graphic Apparel – Bold & Comfortable
Not to be dramatic, but this might be the upgrade your wardrobe’s been waiting for. Premium Gildan® fabric, fade-proof DTG print, and a fit that feels like it was made for you.
📸 What you see is a T-Shirt mockup, but don’t stop there – this design comes in 4 different styles: T-Shirt, Long Sleeve, Crewneck Sweatshirt & Hoodie. Choose your favorite and we’ll make it just for you.
Why Everyone’s Grabbing This
- 🎨 Studio-Grade Print – Eco-friendly DTG ink that bonds permanently. No cracking, no flaking, period.
- 🧵 Feels Like a Hug – Gildan® fabric with OEKO-TEX certified dyes. Premium comfort from the inside out.
- 👕 Move Freely – Classic unisex fit with taped seams. The tear-away label means nothing scratching your neck.
- 🇺🇸 From American Farms – US Cotton Trust Protocol certified. The good stuff, sourced the right way.
Fabric Specs
- T-Shirt & Long Sleeve: Pure cotton (5.3–6 oz) – breathable comfort, durable construction.
- Sweatshirt & Hoodie: 50/50 Heavy Blend (8 oz) – pill-resistant with spandex cuffs & waistband.
- Sport Grey uses a 90/10 cotton/poly blend for its signature heathered tone.
Choose Your Style
Reference the charts below before you order:
Available Colors
Gildan 5000 — Unisex T-Shirt
| Size | Length | Bust |
|---|---|---|
| S | 28 in (71.1 cm) | 36 in (91.4 cm) |
| M | 29 in (73.7 cm) | 40 in (101.6 cm) |
| L | 30 in (76.2 cm) | 44 in (111.8 cm) |
| XL | 31 in (78.7 cm) | 48 in (121.9 cm) |
| 2XL | 32 in (81.3 cm) | 52 in (132.1 cm) |
| 3XL | 33 in (83.8 cm) | 56 in (142.2 cm) |
| 4XL | 34 in (86.4 cm) | 60 in (152.4 cm) |
Gildan 2400 — Unisex Long Sleeve Tee
| Size | Length | Bust | Sleeve |
|---|---|---|---|
| S | 28 in (71 cm) | 36 in (92 cm) | 33.5 in (85 cm) |
| M | 29 in (74 cm) | 40 in (102 cm) | 35 in (89 cm) |
| L | 30 in (76 cm) | 44 in (112 cm) | 36.5 in (93 cm) |
| XL | 31 in (79 cm) | 48 in (122 cm) | 38 in (97 cm) |
| 2XL | 32 in (81 cm) | 52 in (132 cm) | 39.5 in (100 cm) |
| 3XL | 33 in (84 cm) | 56 in (142 cm) | 39.5 in (100 cm) |
| 4XL | 34 in (86 cm) | 60 in (152 cm) | 39 in (99 cm) |
Gildan 18000 — Unisex Sweatshirt
| Size | Length | Bust | Sleeve |
|---|---|---|---|
| S | 27 in (68.6 cm) | 40 in (101.6 cm) | 33.5 in (85.09 cm) |
| M | 28 in (71.1 cm) | 44 in (111.8 cm) | 34.5 in (87.63 cm) |
| L | 29 in (73.7 cm) | 48 in (121.9 cm) | 35.5 in (90.17 cm) |
| XL | 30 in (76.2 cm) | 52 in (132.1 cm) | 36.5 in (92.71 cm) |
| 2XL | 31 in (78.7 cm) | 56 in (142.2 cm) | 37.5 in (95.25 cm) |
| 3XL | 32 in (81.3 cm) | 60 in (152.4 cm) | 38.5 in (97.79 cm) |
| 4XL | 33 in (83.8 cm) | 64 in (162.6 cm) | 39.5 in (100.33 cm) |
Gildan 18500 — Unisex Hoodie
| Size | Length | Bust |
|---|---|---|
| S | 27 in (68.6 cm) | 40 in (101.6 cm) |
| M | 28 in (71.1 cm) | 44 in (111.8 cm) |
| L | 29 in (73.7 cm) | 48 in (121.9 cm) |
| XL | 30 in (76.2 cm) | 52 in (132.1 cm) |
| 2XL | 31 in (78.7 cm) | 56 in (142.2 cm) |
| 3XL | 32 in (81.3 cm) | 60 in (152.4 cm) |
| 4XL | 33 in (83.8 cm) | 64 in (162.6 cm) |
- Browse colors and compare with the chart.
- Use the size guide for the best fit.
- Add to cart and you’re all set!
Delivery Info
- ✅ Production Time: 1–3 business days.
- 📦 US Delivery: 3–7 business days.
- ⚡ US Rush Option: 3–5 business days.
- 🌍 Rest of World: 1–2 weeks.
Your order is freshly printed just for you. Make sure to check the size chart before ordering. Size exchanges aren’t possible for made-to-order items, but we’re here if you need anything.
🛒 Head to TeeEssence.com for more. Quality prints. Premium fabric. Happy customers.