DTEK TRS 525 Woman

Made by DTEK S.r.l. in Verona, Italy, the TRS 525 Women is a high-performance drysuit undersuit engineered for cold-water divers. Rated at 525g thermal equivalent for water temperatures between 4 and 12°C, it pairs a technical pile inner layer with the ZEROWIND® graphene-coated membrane to block cold-water flushing while staying highly breathable — a combination rarely found in off-the-shelf undersuits.

Technical specifications

• Thermal equivalent: 525g — operating range 4 to 12°C
• 3-layer build: soft micro-fleece inner · ZEROWIND® graphene membrane · bi-stretch lycra outer
• ZEROWIND® membrane: waterproof, windproof, breathable, thermal, highly moisture-wicking, elastic, thin and lightweight — 100% biodegradable
• Overlapping reinforcement panels on kidneys and belly for extra insulation at the body's highest heat-loss zones
• Extended double-slider zip with thermal protection — longer zip on the women's cut for easier donning
• Lateral thigh pockets and chest pocket
• Stretch ankle gaiters to keep the trousers in position under the foot
• Thumb loops at wrist cuffs to retain sleeves during drysuit donning
• Dual P-valve ports (left and right side)
• Electric heating cable lead-through — compatible with DTEK HT active heating systems
• Pre-formed knees and elbows for ergonomic posture throughout the dive
• Low-buoyancy design — no ballast readjustment needed
• Material: 100% polyester
• Made in Italy — DTEK S.r.l., Via Lussemburgo 9, Verona, Italy 37135
• Women's sizes: XS (EU 36), S (38), M (40), L (42), XL (44), XXL (46)

Recommended uses

The TRS 525 Women is the undersuit of choice for technical and recreational female divers who regularly dive in water below 12°C: British and Irish wrecks, North Sea sites, Norwegian fjords, Alpine lakes and cave systems in temperate-cold zones. It fits under any drysuit — trilaminate or neoprene — and excels during rebreather dives where extended bottom times in cold water demand consistent thermal protection. The women's-specific cut ensures unrestricted shoulder and hip movement even with a backplate and wing configuration.

Key strengths

• ZEROWIND® graphene: the windproof membrane eliminates cold-water flushing through the drysuit shell without trapping moisture — a technical performance edge over standard fleece undersuits
• Field-proven 525g rating: confirmed thermal equivalent for deep, extended cold-water profiles including rebreather dives at Scapa Flow and the English Channel where maintaining core temperature is non-negotiable
• Women's anatomical cut: the extended zip and hip-specific seam placement make solo donning straightforward even in cold, cramped dive boats — a practical advantage that matters on every entry
• Active heating ready: built-in cable routing means you can upgrade to DTEK HT 320 or HT 600 active heating at any time without replacing the undersuit
• Near-neutral buoyancy: the fine polyester build adds minimal lift, preserving your calibrated weighting for precise trim at depth

Size guide

The TRS 525 Women is available in 6 sizes: XS (EU 36), S (38), M (40), L (42), XL (44), XXL (46). DTEK recommends selecting your standard clothing size — the pile construction remains thermally effective even when slightly compressed inside a trilaminate shell. Refer to the full sizing chart on the official DTEK product page for body measurement tables.

Warranty and certifications

The TRS 525 Women is manufactured in Italy by DTEK S.r.l. (Verona). This thermal diving undergarment is not classified as Personal Protective Equipment (PPE) — its use is subject to the diver's judgement and instructor guidance. For manufacturer warranty conditions