Gregory Baltoro 100 Pro Trekking Backpack 100L Iron Grey L

The Gregory Baltoro 100 Pro is a high-capacity trekking backpack engineered for extended expeditions and heavy loads. Its Response A3 suspension system delivers exceptional load transfer and all-day comfort, making it the ultimate choice for multi-day treks and thru-hikes where gear volume is paramount.

Advantages

The Baltoro 100 Pro stands out with its adjustable torso length and ventilated back panel, ensuring a personalized fit and breathability on demanding trails. The convertible lid transforms into a SideKick daypack, adding versatility for summit pushes or resupply runs. Multiple access points—top, U-zip front, and bottom—allow quick retrieval of gear without unpacking everything. Durable recycled nylon fabrics with PFC-free DWR coating provide weather resistance and sustainability.

Suitable for

• Extended backpacking trips lasting a week or more
• Thru-hiking and long-distance trails
• Mountaineering base camp approaches
• Backpackers carrying heavy loads up to 34 kg
• Outdoor enthusiasts needing a convertible daypack option

Key specifications

• Capacity: 100 liters
• Weight: 2.9 kg (6.4 lbs)
• Dimensions: 83 x 43 x 38 cm (H x W x D)
• Suspension: Response A3 with perimeter alloy frame
• Torso fit range: 45.7 - 55.9 cm (18 - 22 in)
• Hipbelt fit range: 81.3 - 132.1 cm (32 - 52 in)
• Main material: 210D high density 40% recycled nylon
• Bottom material: 630D high density 45% recycled nylon
• Color: Iron Grey
• Size: Large

Recommendations

For trekkers who demand maximum capacity without sacrificing comfort, the Baltoro 100 Pro is a proven workhorse. Pair it with lightweight compression sacks to optimize the 100L volume and take advantage of the included rain cover for unpredictable weather.