Osprey Mutant 38L Backpack for Climbing & Mountaineering – Lemongrass | Small/Medium

Meet the Osprey Mutant 38L, a versatile backpack engineered for demanding alpine days and multi-pitch climbs. Designed with input from local guides and athletes, it emphasizes a close-to-body fit that stays stable as you move across steep terrain. The latest Mutant 38 introduces refined materials and a lighter footprint, thanks to recycled NanoFly and robic fabrics that resist abrasion while trimming weight.

Alpine-ready features that matter in the moment

The Mutant 38L includes alpine-specific features that streamline transitions between climbing, skiing, and trekking. Dual ToolLocks secure ice axes or tools; rope carry simplifies transport of rope on approaches, and the snowshed backpanel helps shed moisture and snow for easier movement. Glove-friendly buckles and strippable features give you practical control in cold conditions.

• Removable top lid with zip pocket; FlapJacket and stowaway pocket keep essentials accessible
• Reverse-wrap hipbelt for stable load transfer and comfortable long days
• Dual ToolLocks with bungee tie-offs for quick, reliable gear management
• Reinforced A-frame ski carry supports skis alongside the pack
• Item Dimensions: 24.8H x 11.8W x 10.2D; Item Weight: 2.52 lb

Durable, eco-conscious materials

New colors and refined fabrics meet durability needs in tough environments. Lightweight NanoFly and robic fabrics contribute to strength without adding bulk, and the use of recycled materials reflects a commitment to lower environmental impact compared to virgin textiles.

• NanoFly fabric balances weight and durability
• Robic fabrics enhance resilience in wet or cold weather

Practical uses and when to consider the Mutant 38L

Think glacier approaches, multi-pitch routes, or alpine ascents where gear versatility matters. The removable lid offers flexible storage when you carry lighter on certain days, while the rope carry and tool management systems help you stay organized under pressure. The 38-liter capacity strikes a balance between space for layers and a compact footprint on technical terrain.

Dimensions and weight are provided to help you plan gear lists for varying routes and conditions. The Mutant 38L is designed for both men and women seeking a reliable, adaptable pack for vertical adventures.