Mustang Survival MV8040 SOLAS Type 1 Adult Life Jacket. IN STOCK. No Sales or Local Tax Anywhere and Free Shipping. The FIRST and ONLY lifejacket to have earned four regulatory approvals in one compact design. After several years of extensive design and testing, Mustang Survival is proud to announce the all new 4-ONE. Approved to USCG SOLAS, TC SOLAS, MED SOLAS, INTERNATIONAL SOLAS and USCG Type I standards, the 4-ONE eases both the hassle and financial burden associated with compliance to a variety of vessel regulations. Available in two sizes to fit both adults and children, the design scores highly on compact storage, easy donning and in-water performance. Please note: A Declaration of Conformity (DoC) is available upon written request for all users needing to prove compliance to MED carriage requirements.