dhb Luggit Slice 25L Rucksack - good?

[bigup]

anyone got a dhb Luggit Slice 25L Rucksack? http://www.wiggle.co.uk/dhb-luggit-slice-25l-rucksack/

looking for one for my work commute 12 miles round trip,

will take shirt, trousers, shoes, in at start of week,

then take socks, underwear back home daily.

also carry lunch, deodorant, wet wipes (no showers at work!) tubes, pump etc

would 25l be the right size?? the 30l is £3 dearer: http://www.wiggle.co.uk/dhb-luggit-slice-30l-rucksack/

been looking at Deuter, berghaus, osprey but the dhb seems to be good value for money

 

[DCLane]

I use a 15ltr Deuter Speedlite, although it's a bit small at times.