Request for Information on Combat Boot Sock

SYNOPSIS: This Sources Sought Announcement is to assist the U.S. Marine Corps Portfolio Acquisition Executive Marine Corps (PAE MC) to identify potential sources to provide a Combat Boot Sock. The goal is to provide warfighting capability and mission support in various environments by enhancing foot comfort, durability, and performance for military personnel. The Government requests that responses be submitted electronically to mary.k.prebensen.civ@army.mil and harvey.walker1@usmc.mil by October 30, 2026 by 5 PM EST. Background: Program Manager Combat Support Systems (PM CSS) is conducting market research to identify potential sources capable of manufacturing a high-performance combat boot sock that meets the requirements of Purchase Description MC-PD-24-003. The sock is intended for use with the applicable standard-issue combat boots identified in the purchase description. This Request for Information (RFI) is issued for market-research and planning purposes only and does not constitute a solicitation, request for proposal, or commitment by the Government to procure any product or service. Description: The Marine Corps is seeking sources capable of manufacturing a durable, reliable combat boot sock designed to provide comfort, protection, and performance during demanding operational use. The sock shall meet the following Salient Characteristics specified in Purchase Description MC-PD-24-003, including, but not limited to, the following key requirements: Sock shall feature an over-the-calf length with cushioning comfort to protect the wearer from hot spots, pressure points, and blisters when wearing combat boots, and they provide graduated compression to promote blood flow from the foot with a non-slip top cuff opening. The foot of each sock includes contouring for the sock to stay in place without bunching, arch support, a gore heel and toe for improved fit, and nylon reinforcement at the heel and toe for durability. A seamless toe closure or a recessed closure wit