What Our Gearhead(R) Experts Are Saying:"I wore this through a stretch of genuinely cold winter swell and the PrimaLoft lining kept me warm way longer than I expected without feeling bulky. The chest zip entry made getting in and out between sets fast, even with cold hands."Winter swell has a way of separating who's actually paddling out from who's watching from the beach, and the Swell Series 4/3mm Chest Zip Wetsuit from Roxy is built for the ones who go. The 4/3mm construction holds warmth through long, cold sessions without turning stiff or heavy, so you can still pop up fast and carve through a turn when the waves demand it. Durable kneepads back you up on late paddle outs and awkward duck dives, taking the wear so the rest of the suit doesn't have to. Underneath the warmth is a wetsuit built with real intention. Ocean Natural Rubber stands in for traditional neoprene, paired with a Repeater Stretch outer and PrimaLoft Warm lining that traps heat while staying genuinely lightweight. A chest zip entry keeps water out and gets you dressed faster, while GBS seams reinforced with Melco spot tape hold up through session after session of hard use.