Switzerland is a member in EU treaties, pays into the EU budget, temporarily pegs its currency to the Euro when it has to, is surrounded by the EU.

Switzerland is the opposite of a state being "without the EU".

It does not pay into EU budget - it contributes to and participates in specific programs and projects. The treaties are rather sectoral agreements which are always under the threat of swiss direct democracy. Bilaterals III has not yet been approved neither by the referendum nor the parliament - while it will likely pass the opposition is every significant.