In Zermatt, as in any ski resort of this caliber, there are plenty of ski equipment rental and sales outlets. There's no need to bring bulky equipment with you. The ski rental shops in Zermatt will provide you with everything you need. Almost all of them rent both alpine skis and snowboards.
On average, ski rentals in Zermatt cost from CHF 190 for six days. A children's ski rental costs around CHF 40 for six days. Snowboard rentals in Zermatt cost on average from CHF 139.
Details of ski equipment rentals, prices, and companies that provide them can be found on the resort's official website.