We’ve joined forces with Breast Cancer Prevention Partners for this limited-edition version of our most popular daypack. The Daylite is lightweight, durable and ready for your next trip on local trails or trip across the pond. For every BCPP Daylite sold, we’ll give back a percentage of profits up to $2,500 to Breast Cancer Prevention Partners, a science-based policy and advocacy nonprofit Osprey has long supported. As a proud partner of BCPP’s Climb Against the Odds mountain expedition for over 15 years, a number of our employees have participated in the transformative climb. Breast Cancer Prevention Partner.