An adjunct configured for use with a surgical stapler end effector includes an adjunct body configured to overlie and directly contact a stapling surface of a surgical stapler end effector, and a plurality of resiliently compressible members coupled with the adjunct body. Each resiliently compressible member extends away from the adjunct body in a first plane that intersects the adjunct body and along which the resiliently compressible member is configured to receive a respective staple of the surgical stapler end effector. In response to closure of the surgical stapler end effector, each resiliently compressible member is configured to resiliently compress within the first plane without deforming in a second plane that perpendicularly intersects the first plane.