The Xcel Infiniti 4/3mm Chest-Zip Fullsuit is Xcel's premium cold-water wetsuit — a 4mm torso, 3mm limb suit with chest zip entry, built on Xcel's Infiniti limestone neoprene platform for maximum warmth, stretch, and durability in sustained cold-water surfing conditions.

Key Features:

• Infiniti Limestone Neoprene — Xcel's flagship neoprene derived from limestone rather than petroleum; delivers significantly better stretch, lighter weight, and improved durability compared to standard neoprene while being more environmentally responsible
• 4/3mm Thickness — 4mm torso and 3mm limbs; rated for water temperatures from 50–62°F; the ideal thickness for consistent cold-water surfing in mid-winter through spring conditions
• Chest Zip Entry (F.U.Z.E.) — front upper zip entry dramatically reduces water flushing compared to back zip; the recessed zipper sits at the upper chest and stays closed under pressure, keeping the back fully sealed and warmer
• Fluid Seam Welded Construction — waterproof fluid seam weld technology at critical seams eliminates stitch-through water entry; fully taped internally for zero-flush seam performance
• Anatomical Paneling — body-mapped panel layout reduces seam bulk in high-flex areas (shoulders, knees) and positions the thickest material over the highest-heat-loss zones
• Thermal X Lining — heat-retaining interior lining on core panels captures and redistributes body heat rather than allowing it to dissipate into the water

The Infiniti is where Xcel's engineering shows its depth — limestone neoprene is measurably better than petroleum-based materials in every performance metric that matters for surfing: weight, stretch, warmth retention, and longevity. At 4/3mm in a chest zip configuration, this suit performs close to premium suits at a higher price point. For surfers who surf regularly through winter, the Infiniti pays for itself in sessions that would otherwise be cut short by cold.

Sizing & Fit: Order using Xcel's men's size chart. Chest zip suits should fit very snug in the torso — the chest zip entry means there's no zipper-related warmth compromise at the spine, so the suit can be cut closer without sacrifice. Between sizes, size down.

Care: Rinse inside and out with fresh water immediately after every session. Hang inside-out in shade. Do not machine wash, tumble dry, or store in direct sunlight. Treat periodically with wetsuit shampoo to extend neoprene life.