I have the Osprey Aura 35 right now and it is great but I need a pack that is at least 4000cu for backcountry Search & Rescue in summer (HOT) and winter (SNOW) in high altitudes and was wondering if this would be a good one or if someone has other good recommendations? I am 5'4" and about 125-130. I need to carry about 30 lbs normally with me. I can't fit that much in that Aura 35 clearly so need the bigger pack and am not sure which brand/model to go for. Thanks.

Tech Specs:

Material:

Cordura nylon (315D) 

Support/Suspension:

7075-T6 aluminum stay, HDPE framesheet, molded back panel 

Shoulder Straps:

Bioform harness 

Waist-Belt:

yes, women's specific, , heat moldable 

Access:

top, bottom, side 

Pockets:

1 lid, 1 front stash, 3 side 

Sleeping Bag Compartment:

yes 

Hydration Compatible:

yes 

Reservoir Included:

no 

Detachable Daypack:

yes 

Detachable Lid:

yes 

Ski Carry:

no 

Skateboard Carry:

no 

Ice Axe Loops:

2 

Gear Loops:

no 

Trekking Pole Loops:

yes 

Weight:

[XS] 5 lb; [S] 5 lb 3 oz; [M] 5 lb 6 oz 

Volume:

(XS) 64 L, (S) 67 L, (M) 70 L 

Recommended Use:

backpacking 

Manufacturer Warranty:

lifetime