I have a love for stripes and just bought this Banana Republic Striped Cardian ($89). The sweater is held together with a small pin closure, much like my favorite Vince sweater which I still wear all the time. The sun is shining bright around here but I'm antsy for fall!
Here are more striped sweaters for fall:
Vince Ensign Cardigan ($320 at Neiman Marcus)
BDG Between the Lines Cardigan ($54 at Urban Outfitters)
BDG Mixed Stripe Pullover Sweater ($58 at Urban Outfitters)
Splendid Rugby Stripe Cardigan ($128 at Shopbop)