Choosing new tires: can't find my size on schwalbe site My bicycle is Merida Crossway MD-40. I Measured the tires and got the following numbers: 701mm x 41mm. Or 27,42 In x 1,6 In.

I wanted to buy one of Schwalbe tires for it. But to my surprise my size was missing on their site.

Is my size somewhat non-standard? Why doesn't Schwalbe produce this size? Are there other companies that do? I wanted to buy slicks with puncture protection.
Your bike had these tyres as stock in 2015 Cross 40c Front - Cross 40c Rear according to http://www.tredz.co.uk/.Merida-Crossway-40-2015-Hybrid-Sports-Bike_74298.htm

2014 version was listed as Tyres:  Cross 700 40C

So you have a 700c rim which can take a 40mm wide tyre.

Confirm this by looking at the sidewall of the tyres, it should say 622-40 or 40-622 somewhere on it.   

Any cyclocross tyre should be good up to a width of 40mm, and you might be able to go a little bit larger if the frame and brakes have clearance.

TBH tyre sizing nomenclature is a horrendous mess.  If you want to know more, click here How are tire sizes measured?