420 dinghy mainsail made of dacron 4.18 Challenge Performance - 420 dinghy mainsail made of dacron 4.18 Challenge Performance - Horizontal section - class logo - pennons - sail battens 420 mainsail Windesign Sailing DESCRIPTION 7 panel 420 mainsail made of 4.18 Challenge performance Dacron. Includes sail - battens, class logo and tell tales.