Si-Tech silicone 28/37 cm neck seal Boxes Experience unparalleled freedom of movement

Experience unparalleled freedom of movement thanks to the ergonomic cut and 4-way stretch exterior

open-bottom design for stable lift and fail-safe venting

This professional-grade tool ensures reliable performance in harsh marine environments

Secure and form-fitting for cycling

The transmitter enables precise Gas Time Remaining calculations

Si-Tech silicone 28/37 cm neck seal Boxes Experience unparalleled freedom of movementUpgrade your drysuit with the SI TECH Silicone Neck Seal (28 37 cm). Experience unparalleled comfort and freedom with 40% more stretch than latex, making donning and doffing easier. This hypoallergenic silicone seal is perfect for those with latex allergies, offering a secure, water tight fit without irritation. Built for durability, its resistant to UV and ozone degradation, ensuring a longer lifespan. The integrated guide ribs allow for easy, custom