Patagonia Men's Lightweight Synchilla Snap T Fleece Pullover Patagonia Men's Lightweight Synch Snap T Fleece Pullover Pitch Blue Patagonia Lightweight Synch Snap T Fleece Pullover Vessel Blue Patagonia Lightweight Synchilla Snap T Pullover (Swallowtail Geo Patagonia Lightweight Synchilla Snap T Pullover Utility Blue Patagonia. An unadulterated Patagonia classic, the Synchilla Snap T Pullover is a definitive archival piece, still deserving of a place in the range and in your wardrobe. Keeping the cold at bay since 85 its now celebrating over 30 years of doing just that.