How does the Summit fit compared to the Charmoz with respect to volume? The Charmoz fits me perfectly and uses Scarpa's low volume FT last. Scarpa's website says that the DL last used for the Summit has a higher volume. Is it significantly higher, or just moderately higher to accommodate thicker mountaineering socks for colder weather?

Tech Specs:

Material:

[Upper] suede Crosta Pro HS12 

Lining:

Gore-Tex Duratherm 

Removable Liner:

No 

Sole:

Vibram Dual PU 

Crampon Compatible:

Yes 

Lacing:

Standard 

Shank:

Nylon composite 

Weight:

[Pair, size 42] 4lb 10oz (2090g) 

Recommended Use:

Mountaineering, ice climbing 

Manufacturer Warranty:

1 Year 

Country of Origin:

China