⭐比標準版 Exos 58 輕了近1磅 (約450克)，專為追求極限輕量（Ultralight / Thru-hiking）的長途縱走徒步者設計。
⭐採用 AirSpeed™ 懸掛網架背板，提供極佳的空氣流通與通風效果，長時間背負也能保持乾爽。
⭐配置了更新版的背長微調機制（fine-tuned adjustment system），能更貼合不同身型的脊椎曲線，確保重量均勻分散至腰臀部位。
⭐可拆卸式浮動頂袋，拆除後可減重80克並減少9公升容量。
⭐內建 FlapJacket 防護頂蓋，在不使用頂袋時仍能保護主艙物體並提供防風雨效果。
⭐頂袋內建鑰匙固定扣，頂部更配有 4 個織帶外掛點（Webbing Lash Points），方便外掛太陽能板或輕量裝備。
⭐雙進出彈性側袋：方便在行走時隨時拿取水壺或裝備。
⭐前方彈性大口袋：便於快速囤放衣物或雨具。
⭐下側壓縮帶：位置經特別調整，可直接穿過前板固定睡墊或瑜伽墊。
⭐雙冰斧環（Dual Ice Axe Loops）：搭配上側壓縮帶，可穩穩固定冰斧或登山杖。
⭐前板多點掛環：方便使用彈性繩加掛額外物品。
⭐背包內部設有水袋專用隔層，並配有中央出水管孔與 Osprey Hydraclip 扣環，方便快速掛載水袋。
⭐主艙內部設有壓縮束帶，能牢牢固定內裝物品，避免重心因移動而晃動。
⭐️規格 Specifications﹕
Volume 容量﹕(S/M) 55 L / (L/XL) 58 L
Weight 重量﹕(S/M) 940g / (L/XL) 980g
Dimensions 尺寸﹕(S/M) 72H × 38W × 31D cm / (L/XL) 77H × 38W × 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)
⭐Nearly a pound lighter than the Exos 58 and featuring a more fine-tuned adjustment system, the 55-litre Exos Pro is the most comfortable ultralight thru-hike backpack in its weight class. A highly-ventilated AirSpeed™ backpanel supports light loads with ease while maintaining maximum airflow across your back, making it an ideal pack for your most long-distance endeavours on the Appalachian Trail, Tour Du Mont Blanc and beyond.
⭐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
⭐Deep, dual access stretch mesh side pockets
⭐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
