For the athlete that wants more than just an entry level suit, the reaction has been significantly upgraded. This suit has been designed with Air-cell neoprene, which improves warmth by creating pockets of air within the suit without reducing buoyancy. The reaction also includes enlarged arm gussets and full body low-friction coating. Combine those features, with a suit praised for its superior fit, and you have a package that is the perfect mid range suit for someone not wanting to spend big dollars, but not wanting to settle for second best.

Advancements

• Air-cell rubber used in the central body panel increases warmth yet still retains excellent buoyancy.
• Enlarged arm gussets with high stretch material to facilitate improved flexibility.
• Low friction coating throughout the suit which creates a lower drag coefficient and enhances speed through the water.
• Buoyancy panels have been extended and repositioned to improve body position resulting in better swim times. 
• Available in femme fit sizes WXS through to WXLA

The culmination of years of testing and research, the helix is simply our finest suit ever. Recently blueseventy introduced TST, torsional stretch technology, further isolating the shoulder panels from the body of the suit, to improve flexibility. Combined with the existing quick exit legs, reverse zipper and multi-stretch cuffs, the helix improvements make for a faster, more comfortable suit. In 2007 this was the suit of choice for athletes in the pro ranks, and based on their feedback, has led to enhancements that will not change that perception.

Advancements

• The introduction of TST (torsional stretch technology) – technically superior Yamamoto materials are integrated into our advanced helix pattern, and mechanically decouple the arms from the rest of the suit. When you stretch into the stroke you are normally pulling against the other panels of the suit. In the helix TST, the TST panels work to ‘fl oat’ the arm so it doesn’t have to work against the body of the suit.
• Larger underarm gusset has been anatomically aligned for better movement.
• Thinner 1.5 mm arms with a more malleable jersey improves flexibility.
• Swim cuffs feature internal silicon print to reduce water entry in the sleeve and reduce movement of the cuff against the skin.
• Ribbed rubber behind the knee reduces compression resistance during knee flexion when running.
• Further reduction in collar bulk to reduce abrasion and assist in movement of the head when sighting during swimming.
• A wider range of women’s sizes

existing features

• Anatomically designed back and shoulder panels allow maximal stretch in all directions.
• Abrasion-free collar constructed of folded soft smooth skin neoprene, for uninhibited sighting and breathing during open water swimming.
• Reversed Quick Exit Zip; driven by professional athlete’s feedback, our reverse zipper is faster than anything else when exiting your suit. It eliminates broken zips, the chance of your zipper being pulled, and helps reduce neck chafing…“a pleasure to use in the helix”- Inside Tri Magazine review.
• Anatomical lower leg cut, including high stretch inserts, designed and tested to allow quicker exit from your suit.
• Pre-formed elbows and knees reduces resistance through the water.