Meindl Airstream Chainsaw Protective Boot The Meindl Airstream is a sporty looking chainsaw boot that can be comfortably worn all day thanks to the memory foam liner. The tongue is a cushioned 3D mesh and highly reticulated perforated sponge material that ensures 33% more breathability than a standard Gore-Tex boot. The Gore-Tex liner also ensures that the boot is waterproof. UK Delivery only