新买一只Ferrino Vertical

35+10升WolfSkin琢磨着不够用，新添一个65升Ferrino Vertical，感觉还行。
Vertical 65
Capacity: 3904 cu.in. (64L)
Weight: 4.2 lbs (1.9kg)
Torso length: 16-21"

Vertical Features

Supertex water-resistant fabric and Rip Lite 600D
Removable and adjustable inner aluminum frame
Fully adjustable contoured shoulder strap
Hood with double pocket
Adjustable double bottom with front access
Side pocket in net fabric
Daisy chains
Lateral compression straps
Crampon and accessories latch on points
Ice ax holders
Ski and pole holders

Front access and separator

for double access bottom

Contoured waist belt

Back padding

$135 Vertical 65 orange

请教一下，7月新疆/西藏，携带睡袋，15摄氏度以上的够用么？