Offers and Promotions IRVINS 11.11 Buy 1 Get 1: Kuromi Salted Egg Popcorn and Salmon Skin, 11 to 13 Nov 2026 IRVINS Singapore's online shop has an 11.11 Buy 1 Get 1 promo from 11 to 13 November 2026 on selected snacks, including Kuromi Salted Egg Custard Popcorn at S$9.00 and Salted Egg Salmon Skin at S$5.90. Free delivery over S$25. Nov 9, 2026