There’s a rare sample sale/clearance sale of Under Armour performance wear with prices up to 80% off original retail. The special four-day sale is Wednesday, Oct. 31 through Sunday, November 4 at 260SampleSale, the huge storefront at 260 Fifth Avenue that has become a favorite spot for designer sample sales and clearance sales. Hours are Wednesday to Saturday, 10 am to 7 pm, and Sunday 10am to 4 pm. 260SampleSale accepts cash and credit cards, and all sales final. Expect to check your purse at the entrance, so wear something with pockets for your valuables.