5/4/3 5 mm in the torso, 4 mm in the sides and legs, 3 mm in sleeves. This provides warmth and strength in the torso and thighs, and flexibility and comfort in the arms and calves. 5/4/3 full suit features double-sealed adhesive and blind-stitching for seam integrity. Exclusive thumb loop at base of zipper for easier on and off. Full suits feature O-ring seals at wrists and ankles. Made of the world's highest-grade closed-cell neoprene, which provides thermal protection and durability. Super-flexible Thermoskin. Top-quality YKKTM zippers and zip flaps to minimize entry of water. Glued and sewn rubber kneepads deliver maximum flexibility, durability and cushioning. Suits are cut in the swim position for more flexibility and comfort. 3/2 3/2 full suit features 3 mm in the torso and thighs and 2 mm in the arms and calves. This provides warmth and strength in the torso and thighs, and flexibility and comfort in the arms and calves. Flat lock stitch for comfort and durability. Exclusive thumb loop at base of zipper for easier on and off. Features O-ring seals at wrists and ankles. Super-flexible Thermoskin. Top-quality YKKTM zippers and zipper flaps minimize entry of water penetration and don't hang up. Vulcanized rubber kneepads deliver maximum flexibility, durability and cushioning. Suits are cut in the swim position for more flexibility and comfort. Sized to fit most body types and water-sport needs.