The deal is effective beginning in the spring of 2018.
Canadian hatmaker Tilley Endurables is overhauling its image, introducing toques, baseball caps and other youthful designs.
Love Your Melon has also built a volunteer network of 11,000 college students.
The helmet is produced in collaboration with Italian company Kask.
The first beneficiary will be Schoolhouse Nine in Virginia.
The hat uses a patented No Fly Zone fabric, manufactured by Dorfman Pacific.
A selection of gloves for winter 2016-17 will be sold in the Inès de la Fressange boutique on Paris’ Left Bank starting in November.
The limited-edition foulards are part of the brand’s Cities of the World collection.