⭐極致輕量化設計： 專為每一克都至關重要的長途縱走 (Thru-Hike) 設計，比標準版 EJA 58 輕了近一磅 (約450g)，為同級輕量背包中背負舒適度極佳的選擇。
⭐可拆卸頂袋與靈活容量： 頂袋可自由拆卸（可立減 74g / 2.6 oz 及約 9L 容量）；拆除頂袋後，可使用內建的 FlapJacket 頂蓋 進行頂部防護，維持天氣防禦與包身穩定。
⭐女性專屬剪裁 (Women's Fit)： 針對女性體型結構設計的肩帶與腰帶角度，帶來更貼合的背負感受。
⭐AirSpeed™ 透氣懸掛背板： 採用 3D 張力透氣網布背板，讓背部保持乾爽不悶熱。
⭐微調背長系統： 輕量化射出成型天梯調節設計，提供4吋 (約10cm) 的背長調節範圍。
⭐LightWire 外框： 3.5mm 粉體塗層鋼絲外框，兼具承載支撐力與動態靈活性。
⭐腰部防滑矽膠印刷： 位於下背部的矽膠印刷能有效提升腰帶抓附力，防止背包滑動。
⭐ExoForm™ 人體工學肩帶： 結合反向間隔網布、切割 EVA 泡棉與 3D 結構網布，兼具支撐與透氣。
⭐胸帶配備求救哨： 15 mm 可調式滑軌胸扣，附整合式求救哨。
⭐ExoForm™ 動態腰帶： EVA 泡棉襯墊具備動態彈性，配有拉鍊口袋，方便存放隨身物品或行動糧。
⭐雙進口彈性側袋： 深口設計，可側拿或頂拿水瓶。
⭐正面大型壓縮口袋： 大容量彈性布料前口袋，方便快速打包額外裝備。
⭐雙冰斧環： 配有冰斧固定環，配合上方壓縮帶固定柄部。
⭐睡墊固定帶： 下側壓縮帶可延伸連接至正面，用以固定睡墊。
⭐水袋專用隔層： 內建水袋水袋吸管出口與 Osprey Hydraclip 掛鈎。
⭐️規格 Specifications﹕
Volume 容量﹕52 L
Weight 重量﹕Approx. 874g (1.927 lbs)
Dimensions 尺寸﹕67H × 36W × 31D cm
Load Range 建議背負重量﹕5-18 kg
Material 材質﹕(Main & Bottom Fabric 主體與底部面料) NanoFly™ : 100D Nylon 尼龍 x 200D 超高分子量聚乙烯 (UHMWPE) 網格抗撕裂布料 (Ripstop), DWR treatments made without PFAS (不含 PFAS 的防潑水塗層)
⭐For committing thru-hikes where every gram counts, the 55-liter Eja Pro provides the most comfortable carry in its weight class. Shedding nearly a full pound off from the Eja 58, the Pro features a more fine-tuned adjustment system for its ventilated AirSpeed™ suspension system with anatomical women's fit. Comfort, without weighing you down.
Removable, floating single compartment top lid with key clip
⭐Four webbing lash points on top lid
⭐FlapJacket secures main compartment access and provides weather protection when lid isn’t used. Removing top lid reduces carry capacity by 9 L and weight by 80 g
Internal hydration sleeve with center back hose port and Osprey Hydraclip for easier reservoir hanging
⭐Internal compression strap keeps loads stable
⭐Large front fabric compression pocket with stretch side panels accommodates overloads
⭐Multiple front panel lash points for securing extra gear
⭐Lower side compression straps designed to capture sleeping pad on front panel
⭐Dual ice axe loops with handle capture by upper compression straps
⭐AirSpeed™ Suspension
A tensioned mesh backpanel keeps the weight off your back, enabling highly ventilated carrying comfort.
⭐Volume Flexibility
Compression straps and removable lid allow for functional capacity adjustment.
⭐Ultralight Design
Lightweight fabrics deliver durable performance.
⭐Removable Lid
Sheds 74 g / 2.6 oz. when the top lid is removed. An integrated FlapJacket secures the main compartment opening, providing weather protection and load stability when the lid isn't used.
Ultralight AirSpeed™ Suspension
Lightweight injection-molded ladder provides 4" of torso adjustability, Two-sizes-per-gender design ensures perfect fit and allows for quick, easy adjustment, 3.5 mm powder-coated LightWire frame balances support and dynamic flex
⭐Backpanel
3D-tensioned breathable mesh backpanel ensures supportive fit, Silicone print on lumbar fabric enhances hipbelt grip
⭐Exoform Harness
Shoulder straps combine reverse spacer mesh, die cut EVA foam and a unique structured 3D mesh to deliver excellent support and ventilation, Ventilated mesh yoke evenly distributes load for comfort while maintaining breathability, 15 mm adjustable slide sternum strap with rescue whistle
⭐Exoform Hipbelt
EVA foam padded hipbelt offers dynamic stretch for a secure, dynamic fit, Zippered pocket provides secure storage
