We believe the Borealis Boavista tropic styled 20mm blue rubber strap is the best on its class available in market for diver watches taking into account the quality/price ratio and majority of our customers agree with that.
It has an underside with a waffle pattern making it extremely comfortable even in hot summer days as it allows perspiration of skin.
This rubber strap is the result of over a year of work developing a new vulcanized rubber formula that brings what a rubber strap should be about: durable, flexible, vintage looking and affordable.
The Borealis Boavista tropic styled rubber strap in 20mm Blue has a size of 131/78 mm, a diameter of 20mm tapering at 12mm at buckle and is made of vulcanized rubber. Its composition does not contain any kind of silicone just rubber though it is flexible as a silicone rubber without attracting dust.
Please be aware recommended maximum thickness of spring bars used is 1.8mm thick.