Dont listen to this east coaster. Style is important in snowboarding. Right now there are two styles. Theres a streetwear/emo influenced style which is just slim fit. This is a fairly new style, only a year or two old. Then there's the baggy loose fit style thats been around for a long time.
Heres an example of a streetwear influended style pants and jacket...
http://www.burton.com/mens-snowboard-pants-burton-stroker-pant/218538,default,pd.html?dwvar_218538_variationColor=615&start=1&cgid=mens-pants&prefn1=filterFit&prefv1=Slim%20Fit
http://www.burton.com/mens-snowboard-jackets-burton-stroker-jacket/218446,default,pd.html?dwvar_218446_variationColor=253&start=1&cgid=mens-jackets&prefn1=filterFit&prefv1=Slim%20Fit
Heres a pair of loose fitting style pants and jacket...
http://www.burton.com/mens-snowboard-pants-burton-stroker-pant/218538,default,pd.html?dwvar_218538_variationColor=615&start=1&cgid=mens-pants&prefn1=filterFit&prefv1=Slim%20Fit
http://www.burton.com/mens-snowboard-jackets-burton-entourage-jacket/218432,default,pd.html?dwvar_218432_variationColor=312&start=1&cgid=mens-jackets&prefn1=filterFit&prefv1=Sig%20Fit
Other companies have the slim and loose options too! Theyre both sick in my book......Good LUck