Extra Butter has teamed up with Sperry for their latest collaboration. Known as the "Greenskeeper" edition, this A/O comes in a heather grey and green colorway. Featuring a woodland camo salt wash and heather grey jersey cotton upper with a pale yellow french terry lining, gum sole and Extra Butter branding on the back heels. A limited release, look out for them exclusively at the Chelsea Piers Driving Range in NYC, hosted by Extra Butter in mid-June of 2015. Retail is set at, $95.