We’ve Updated Our Case Series.
Names like Ultra-Slim, ProGuard, and UltraGuard helped describe features, but over time, they also caused confusion.
At PITAKA, we’ve always focused on advancing aramid fiber weaving to improve everyday carry. As our products evolved, we wanted our names to reflect the experience, not just the specs. That’s why we renamed our three series asCairn, Edge, and Summa— inspired by a journey of climbing:* Edge: slim, light, and sharp along the climb (Original name: Ultra-Slim Case)
* Cairn: firm and dependable, like stone markers that guide the way (Original name: ProGuard Case)
* Summa: the peak, where protection and hand-feel come together (Original name: UltraGuard Case)

The glowing part of the case is made from Lumintex™ fiber, a luminous material that can absorb energy when exposed to a bright light source, and then emit a soft glow in the dark.

The glow can last up to 20 minutes, depending on the intensity of the light source and how long the case was exposed to the light. Please note that the brightness will gradually decrease over time.

Avoid prolonged exposure of the luminous area to high-energy UV lamps (≥15W) for more than 3 minutes. Do not store the case in environments exceeding 80°C for more than 3 months.

With proper storage and use, the luminous materials can last for at least two years.

1. Hold the case on the volume button side and push the top corner diagonally upward to release it. 2. For better grip, wrap the case in a paper towel if needed.

3. Click to watch the removal video. click hear to submit a return request if you need further assistance.