UrlPath Class - Path.Combine for URLs

using System.Text;

public class UrlPath
{
    public static string Combine(params string[] items)
    {
        var sb = new StringBuilder();

        foreach (var item in items)
        {
            if (sb.Length > 0 && !sb.ToString().EndsWith("/"))
                sb.Append("/");

            if (sb.Length > 0 && item.StartsWith("/"))
                sb.Append(item.Substring(1));
            else
                sb.Append(item);
                    
        }

        return sb.ToString();
    }
}