Apollo Bio-Seal Neck Seal "L"

Apollo Bio-Seal Neck Seal size Large (Fits 14" - 16"+ (35.5 cm - 40.6 cm+) necks).  Latex Free. The Apollo Bio-Seal for necks is a unique secondary seal designed to be worn under your existing drysuit or wetsuit seal, helping to eliminate leaks for a warmer, drier, and more comfortable dive.