Kensington Microsoft Surface Pro Rugged Case for Surface Pro 6, 5 (2017) and 4 – BlackBelt 2nd Degree Rugged Case (K97443WW) Price: $34.97 (as of 02/06/2019 08:12 PST- Details) & FREE Shipping.

The Surface Pro case is constructed from strong, rugged polycarbonate and is designed to meet military-grade MIL-STD-810G testing protocols for rugged protection against drops
Integrated silicone hand strap for easier, worry-free sharing and collaborating
Type Cover channel allows for fast attaching and detaching of keyboard (sold separately) without having to remove case

Usually ships in 24 hours