After 2 weeks riding i had a lot uncomfortable feelings with the common seat on Strida 3.
I’ve found in US a seat ISM Touring Saddle,which is used by Police guys, on Amazon.com purchase it for 70$.
Now it’s my first week riding on new seat - the first feelings less painfull!
My fotos of Strida3 with a new saddle:
http://fotki.yandex.ru/users/nda-tool/view/1129602
http://fotki.yandex.ru/users/nda-tool/view/1129600
http://fotki.yandex.ru/users/nda-tool/view/1129601