[Spoiler?] DEATH STRANDING™ get the Gravity gloves
Item of Half-Life Collaboration in Death Stranding PC / Director's Cut.
The mail come when you first arrived Weather Station (Order no.27). The CUBE is in the MULEs camp at south-west of Craftsman, take it back to Distribution Center South of Lake Knot City.
Reward is blueprint of gravity gloves, it make Sam grab the items (cargoes, Chiral crystal, Cryptobiotes, etc) from a distance.