The Takeyoshi Altitude Master is an 8 base frame construction designed for rigorous outdoor pursuits. The ergonomic form is engineered to aid ventilation and enhance the field of vision whilst protecting the eyes. The temples are shaped to accommodate helmet use, and adjustable nose pads and temple tips provide a secure, customized fit, reinforced by a grade 2 titanium core for added durability. Our signature D+ therapeutic-grade lenses are crafted from a shatterproof polycarbonate compound. The interior surfaces feature anti-reflective and oleophobic coatings, providing comprehensive eye protection while repelling water and oil. D+ Fire Mirror was developed for physical pursuits requiring maximum sun protection. The mirror coating facilitates additional infrared screening. The lens offers 100% UVA/B protection while transmitting 19.17% of visible light and 14.03% of blue light.

This version features our vented lenses made with high-precision and hand finished CNC cutting techniques. Vent cuts are positioned along the upper edge of the lenses creating additional air exchange around the frame—helping warm, humid air escape before it can accumulate behind the lens. This increased ventilation reduces conditions that cause condensation and lens fogging, a principle commonly used in performance eyewear. The cuts serve both as a functional detail and a distinct visual element highlighting the beauty of advanced eyewear technology.

Takeyoshi Altitude Master 採用八基底鏡框結構，專為高強度戶外活動所設計。符合人體工學的框型能提升通風效果、擴大視野，同時提供更完整的眼部防護。鏡腳造型特別考量與安全帽搭配使用，可調式鼻墊與鏡腳末端則能依個人需求調整，提供穩固且貼合的配戴感受；鏡腳內部加入 Grade 2 鈦金屬核心，以提升耐用性與結構強度。品牌標誌性的 D+ 治療級鏡片採用防碎聚碳酸酯材質製成。鏡片內側經抗反射與疏油塗層處理，在提供全面眼部防護的同時，也能有效防水與防油污。D+ Fire Mirror 專為需要高度防曬保護的運動環境所開發。鏡面鍍膜能進一步加強紅外線阻隔效果。鏡片可阻隔 100% UVA／UVB 紫外線，可見光穿透率為 19.17%，藍光穿透率為 14.03%。

此版本另搭載通風鏡片，透過高精度 CNC 切削與手工修整製成。通風切口設置於鏡片上緣，可增加鏡框周圍的空氣交換，讓溫熱、潮濕的空氣在鏡片後方累積前排出。提升後的通風效果有助於減少凝結與起霧，也是高性能運動眼鏡常見的設計原理。這些切口除了具有實際機能，也成為鮮明的視覺細節，突顯高階眼鏡工藝與技術感。