Swix FC4X is a brand new powder in the revamped Swix race wax system.
This is a cold powdered overlay which perfroms well in all cold snow conditions but is especially effective at combating dry friction common in its recommended temp range of -10° to -20°C / 14° to -4°F.
Exhaustively tested over a 2 year period, FC4X has proven itself as a great cold condition accelerator at World Cup destinations for both alpine and cross country events.
Suggested base waxes are HF4X, HF4BWX or LF4X30g. container provides approximately 5 to 6 applications when friction applied.