Portugal Road Sign O7a-b T-Shirt Design
This t-shirt design prominently features the essential visual elements of the Portuguese road signs O7a and O7b. These signs, known as "Baliza de posição" (Position markers/Delineators), are crucial for alerting drivers to hazards or the edge of the road, particularly in low-visibility conditions.
Design Elements and Representation
The design clearly distinguishes between the two variations. O7a, representing an obstacle on the left, is visually depicted with a reflective surface inclined to the left. Conversely, O7b, indicating a hazard on the right, showcases a reflective surface inclined towards the right.
The artwork utilizes the standard shape and coloration of these signs in Portugal's road signage system. The design aims for a clear and immediate understanding of the signs' purpose: to communicate potential dangers on the roadside and guide drivers safely, especially in challenging environments. The minimalist approach focuses on the core message, making the hazards clearly identifiable.
Unisex Heavy Cotton T-Shirt
A reliable classic cotton tee built for comfort, durability, and style. This unisex heavy cotton shirt is the perfect everyday staple — soft, structured, and designed to make printed designs look sharp and vibrant.
Product Highlights
- 100% heavy cotton fabric for structure and comfort
- Smooth surface ensures vivid, long-lasting prints
- No side seams for irritation-free wear
- Reinforced shoulders to maintain shape over time
- Classic unisex fit — works for all body types
Fit & Style Notes
Designed with versatility in mind, this tee works as your everyday go-to. Wear it true-to-size for a classic fit, or size up for a relaxed, modern drape. The mid-weight cotton balances softness and structure, making it equally great for layering or wearing on its own.
Style it with jeans, joggers, or skirts — its timeless silhouette makes it easy to dress up or down. Perfect for personal wear, printing, branding, or merch drops.
Size Guide
For best results, measure a t-shirt you already own laid flat and compare the chest width and length to the chart below.
| Size | Width (in) | Length (in) | Sleeve (in) |
|---|---|---|---|
| S | 18.00 | 28.00 | 15.10 |
| M | 20.00 | 29.00 | 16.50 |
| L | 22.00 | 30.00 | 18.00 |
| XL | 24.00 | 31.00 | 19.50 |
| 2XL | 26.00 | 32.00 | 21.00 |
| 3XL | 28.00 | 33.00 | 22.40 |
| 4XL | 30.00 | 34.00 | 23.70 |
| 5XL | 32.00 | 35.00 | 25.00 |
Tip: Compare these measurements with your favorite tee for the best fit.
Care Instructions
- Machine wash cold (max 30°C / 90°F)
- Use non-chlorine bleach only when necessary
- Do not iron directly on printed designs
- Do not dry clean
- Tumble dry on low heat
