Here's a Niviuk F-Gravity pilot, throwing his wing around a bit. Let me guess... A moderate breeze is flowing over that ridge, so there's plenty of slope lift to play in. It's cold, hence the pilot is wearing full-length clothing. With all that cloud cover in the background, perhaps there's a bit of rain around... Apparently, this wing was designed with acro in mind, although in the right hands it will still go cross-country.