LINE STRANA — Pure Carbon
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2-Year Structural Warranty
LINE STRANA — Pure Carbon Bracelet
Structural clarity. Pure material.
Part of the Line Collection, LINE STRANA is defined by a single forged carbon bar — uninterrupted and deliberate.
No metal. No glow. No excess. Only forged carbon shaped with intention.
Precision-machined from a solid carbon block and finished entirely in-house, the elongated form emphasizes alignment and balance. The surface reveals the natural flow of compressed carbon strands — controlled, layered, and unique to each piece.
Minimal structure. Material focus. Engineered restraint.
Details
- Collection: Line Collection
- Material: Solid forged carbon fiber
- Bar Dimensions: 41 × 9.5 mm
- Finish: Hand-polished gloss
- Cord: Premium braided leather
- Closure: Precision magnetic clasp
- Origin: Designed and manufactured entirely in-house
Features
- Machined from a single carbon block
- High strength-to-weight ratio
- Ultra-lightweight yet durable
- Hypoallergenic
- Each forged carbon pattern is one-of-one
Structure over decoration.
Ring Size Guide
Ring Size Guide
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 6 | 16.5 | 52.0 |
| 7 | 17.3 | 54.5 |
| 8 | 18.2 | 57.0 |
| 9 | 18.9 | 59.5 |
| 10 | 19.8 | 62.1 |
| 11 | 20.6 | 64.6 |
| 12 | 21.4 | 67.2 |
| 13 | 22.2 | 69.7 |
| 14 | 23.0 | 72.3 |
How to Measure at Home
Method 1 — Use an existing ring
- Measure the inner diameter of a ring that fits you
- Match the measurement to the chart above
Method 2 — String or paper method
- Wrap a string or strip of paper around your finger
- Mark where the ends meet
- Measure the length in millimeters
- Match to the circumference column
Tip: Measure at the end of the day when fingers are slightly larger for the most accurate fit.
Bracelet Sizing
SIZING GUIDE
Engineered fit starts with accurate measurement. Follow the steps below to select the correct size.
BRACELET SIZING
How to Measure Your Wrist
- Measure your wrist just above the wrist bone.
- Use a flexible measuring tape. If you don’t have one, use a string and measure it against a ruler.
- Keep it snug — not loose, not tight.
- Do not add extra space. We include a comfort allowance in the bracelet design.
Bracelet Size Chart
| Size | Wrist Circumference (cm) | Wrist Circumference (in) |
|---|---|---|
| XS | 14.5 – 16 cm | 5.7 – 6.3 in |
| S | 16 – 17 cm | 6.3 – 6.7 in |
| M | 17 – 18.5 cm | 6.7 – 7.3 in |
| L | 18.5 – 20 cm | 7.3 – 7.9 in |
| XL | 20 – 21.5 cm | 7.9 – 8.5 in |
Between sizes? Choose the larger size for a looser fit.
Care Guide
Kartiel forged carbon jewelry is finished with an automotive-grade clear coat used on luxury cars, providing durability and long-lasting protection. Clean with a soft cloth and avoid harsh chemicals to maintain its finish.
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How It’s Made
Each piece is shaped, finished, and refined in-house from forged carbon composite and precious materials.
