Here is the sweater "Kross" from Istex Lopi book #28
The pattern says you should use five colors but I thought three would do just fine. This sweater is quickly knitted because it's quite simple. The gap pattern was a bit of a challenge though when it came to the sleeves. The reason is that the gap stitches are so big and I was using double point needles. The stitches were always falling off. So I used circular needles for the gap round and then I switched back to the double point for the next row after.
Pattern: "Kross" ("Cross") -- Lopi book #28 from Istex
Yarn: Istex Lopi lett (Lopi Light)
Needles: 6.5 (5.5 for the ribing)