Cetus is a Polish mountain and outdoor retailer serving hikers, climbers, campers, and people who work at height. Its online shop offers a broad selection of footwear, clothing, accessories, and specialist equipment for outdoor activities and technical work. Customers can browse trekking, mountaineering, winter, running, and climbing shoes, alongside apparel for women, men, and children, including waterproof layers, thermal clothing, and merino wool products.

The range also covers backpacks, travel bags, tents, sleeping bags, mats, lighting, trekking poles, camping cookware, stoves, and other travel essentials. For climbing and work at height, Cetus stocks items such as harnesses, helmets, ropes, carabiners, belay and descent devices, and fall-protection equipment. The shop also sells guidebooks and outdoor publications, gift vouchers, and products from established outdoor brands.

Cetus operates an online store and a physical shop, and provides customer support by phone and email. Its website advertises 24-hour dispatch, a 14-day return period, and free shipping. Customers can also sign up for the newsletter to receive a discount on their first purchase.