The Team Realtree Olive Drab ACX Down Hunting Jacket uses only the best quality 90/10 Grey Goose down. This hunting jacket incorporates a soft, yet durable, polyester shell with internally baffled bags of down to protect the down from migrating towards the bottom of the jacket. The Team Realtree Olive Drab ACX Down Hunting Jacket is compatible with all ACX (Adaptable Component Exchange) shells.