O’NEILL. With a thermal liner that makes it feel like summer on the inside, the Defender keeps the water out, the heat in and keeps your core toasty for longer. An all-round performer, fully flexible, comfortable, durable, and incredible value for money. . FEATURES: BACK ZIP. - Back Zip entry system with durable zipper provides easy entry and exit with a water resistant seal. . ULTRA DS NEOPRENE . - High-performance super-stretch neoprene with a durable outer skin that resists velcro pulls and snags. Stretch factor: 150% . . POLARFLEX FIREWALL: . - PolarFlex firewall through the chest and arms with Ultrafibre liner in arms and legs . . GBS + TAPED SEAMS . - Glued and blindstitched for durable watertight seals, core 3/4 of seams are taped to further enhance seam integrity and comfort. . MESHSKIN BACK PANEL: . - Single line mesh skin neoprene that prevents wind chill and keeps the vitals warm. . KRYPTO KNEE PADZ: . - Krypto Knee Padz features O'Neills tried and tested knee protection material for long lasting durability without impacting comfort. . SINGLE SEAM COLLAR: . - Single neoprene collar. . KEY POCKET: . - Hidden Key Pocket in right leg below the knee. Keep your key safe in a location that is hassle free