IST Malaysia is a scuba and freediving equipment retailer operated by Tom Manas Technologies Sdn Bhd, based at Flat PKNS on Jalan Tun Razak, Kuala Lumpur. The shop, part of the IST dive-gear brand, sells regulators, BCDs, masks, fins, snorkels, dive computers, wetsuits, dive bags and spare parts, along with freediving equipment, and is also available through its own online store and Shopee. It offers an e-catalogue of its product range, seasonal promotions and in-store shopping at its Kuala Lumpur location, open six days a week.