Mustang Survival Sentinel™ Series Lightweight Boat Crew Dry Suit


The Sentinel™ Series Lightweight Boat Crew Dry Suit, featuring a front relief opening, is meticulously designed to optimize fit, comfort, and functionality, maximizing safety and efficiency during missions.

Endorsed by the US Coast Guard, NAVAIR, SAR Model Manager Office, Naval Special Warfare, and swift water and ice rescue instructors, our Sentinel™ Series is crafted to seamlessly integrate with all equipment used in these environments. The MSD638 model is a waterproof and breathable constant-wear boat crew dry suit. Tailored for Law Enforcement and Search and Rescue (SAR) small boat operations, this suit is perfect for crew members who don’t plan to enter the water but need hypothermia protection in case of accidental immersion. Trust the Sentinel™ Series for reliable performance in challenging situations.

Part Number:


  • Front relief opening (model# MSD638) or Drop-seat relief opening (model# MSD639)
  • Multi-position fleece lined storm collar for improved protection and comfort
  • Rapid Repair CCM™ adjustable neck seal can be worn loose to provide comfort out of the water (neoprene or latex neck seals optional)
  • 62 square inches of SOLAS retroreflective tape for increased visibility
  • 2 arm pockets with Velcro® patches on the shoulder for unit badging
  • 2 chest hand warmer pockets (accessible even while wearing a PFD)
  • Large CORDURA® reinforced over cuffs with Velcro® closures for adjustability
  • Rapid Repair trim-to-fit neoprene wrist seals (latex wrist seals optional) and replacement integrated GORE-TEX® dry socks
  • Easy to operate and low maintenance entry and relief waterproof dry zippers
  • Two-point attachment removable suspender system for improved fit, mobility, and comfort (internal suspenders included)
  • Duty belt keepers at the waist
  • 1050 Ballistic Nylon reinforced seat
  • 2 thigh cargo pockets
  • 1050 Ballistic Nylon reinforced neoprene knee pads help prevent injury
  • 2 calf pockets (One on each leg) with neoprene survival hood attachment (MA7348 Survival Hood sold separately)
  • Large CORDURA® reinforced leg over cuffs have Velcro® closures for adjustability
  • Compatible with MA7105 Carrying Case and MSL600 & MSL601 thermal fleece liners
  • The Mobility Based Sizing™ platform offers users a semi-custom suit that reduces bulk and increases range of motion, with 25 different sizes available

Proposition 65 WARNING for California residents

Additional information


Men's, Women's


X-Small Short, X-Small, X-Small Long, Small Short, Small, Small Long, Medium Short, Medium, Medium Long, L1 Short, L1 Regular, L1 Long, L2 Short, L2 Regular, L2 Long, X-Large Short, X-Large, X-Large Long, XX-Large Short, XX-Large, XX-Large Long, XXX-Large Short, XXX-Large, XXX-Large Long


Orange / Black



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