Premier Equine Journal Turnout rug technology10,000 / 10,000. Our weatherproof standard, not an upgrade.Turnout testing goes beyond the laboratory. It happens through hours of rain, grazing, rolling, wind, mud and changing temperatures. A horse rugs waterproof rating is a good place to start, telling you how effectively the fabric is designed to resist water. Equally important is breathability, allowing moisture and water vapour to escape while helping your horse stay dry and comfortable. Thats why every Premier Equine turnout fabric starts with the same 10,000mm waterproof and 10,000 g/m/24hr breathability benchmark. From Stratus to Titan, you choose the rug for the fit, durability and coverage you need, while we make sure your horse stays dry underneath.10,000mm waterproofHydrostatic-head standard across Premier Equine turnout fabrics10,000 g/m/24hrMVTR breathability standardEvery roll of fabric is testedAll turnout fabric checked before it is cut and made into rugsOne standard across all turnout rugsWeather protection is the core, not a premium upgradeThe numbers matter because the horse feels the result: less rain coming in, more moisture able to move out.Premier Equine waterproof guideTechnical information from the Premier Equine product team10,000mm waterproof 10,000 g/m/24hr breathability every turnout fabric roll tested before production updated September 2026In this guideQuick answer PE approach 10,000mm Hydrostatic head Breathability MVTR Membrane system Fabric testing In the field Performance loss Rug ranges What to look for FAQs01Quick answerWhat is the Premier Equine waterproof standard?Every Premier Equine turnout fabric is tested for a minimum of 10,000mm waterproofing and 10,000 g/m/24hr breathability. This standard does not sit behind a higher price point. Moving from Stratus to Akoni, Buster or Titan changes fit, fill, outer-fabric durability and construction, not the core waterproof and breathability standard.Our philosophy is simple: excellent weather protection is the bare minimum.Our aim is to give every equestrian access to highly technical waterproofing and breathability, then give the option to spend according to the horses real needs by choosing stronger outer fabrics, different fits, more insulation or more specialised construction.What does 10,000mm waterproof mean?It means the fabric resisted water pressure equivalent to a 10-metre column of water under hydrostatic-head testing before water penetration through the fabric occurred. Paired with 10,000 g/m/24hr breathability, it describes a fabric built to resist rain while allowing moisture vapour from the horse to move outward.Want to see the complete turnout collection built around this weatherproofing standard?Explore horse turnout rugs02The Premier Equine approachReal-life value starts with what matters most to the horse.A horse can spend hours outside grazing in driving rain, walking around the field, rolling and generating its own heat beneath the rug. Waterproofing and breathability are therefore one performance problem, not two marketing claims. Premier Equine keeps the same 10,000 / 10,000 weather benchmark across the turnout collection, then engineers the rug around the horse and the demands of the field.03The two numbers behind the standardWhat does 10,000 / 10,000 actually mean in the field?The point of a technical rating is not to impress the rider with numbers. 10,000mm tells you how the fabric resists water pressure. 10,000 g/m/24hr tells you how effectively moisture vapour can move through the fabric. One keeps weather out; the other helps the horse avoid feeling sealed inside.10,000mm Waterproof Hydrostatic headMeasures how much water pressure the fabric can resist before penetration. This figure relates to rain resistance, not insulation and not denier.10,000 g/m/24hr Breathability MVTRMeasures moisture-vapour transfer through one square metre of fabric over 24 hours. It helps quantify how effectively moisture can move outward through the technical fabric.Technical measure3,000 Standard5,000 standardPremier Equine 10,000 benchmarkWaterproof hydrostatic headEquivalent to a 3-metre column of water under the test methodEquivalent to a 5-metre column of waterEquivalent to a 10-metre column of waterBreathability MVTR3,000 g/m/24hr moisture-vapour transfer5,000 g/m/24hr moisture-vapour transfer10,000 g/m/24hr moisture-vapour transferHow to read itLight rain protection and suitable for low level activity such as strolling or standing.Protection against moderate rain showers and allows for low level exercising.Effectively protects against rain and average snowfall while managing sweat during exercise.The table explains the scale of the ratings rather than ranking individual brands. Laboratory methods and product constructions can vary, so compare published figures alongside fit, seams, membrane condition, care and intended use.At the pinnacle of horse turnout rugs. 10,000 / 10,000 sits at the top of published equestrian turnout rug performance. Premier Equine makes this weatherproofing standard the starting point across the entire turnout rug collection, so you can choose by fit, fill and field durability without paying simply to unlock better weather protection.04Water beading on technical turnout fabric. Hydrostatic-head testing goes further by measuring how much controlled water pressure the fabric resists before penetration.Hydrostatic-head testingHow is horse-rug waterproofness tested?A hydrostatic-head test applies controlled water pressure to a fabric sample. The result is expressed in millimetres. A 10,000mm result means the fabric resisted pressure equivalent to a 10-metre column of water before water penetration was recorded under the test method.In turnout, rain is driven by wind while the rug flexes over the neck, shoulder and back as the horse grazes, rolls and moves. Hydrostatic-head testing gives a repeatable benchmark before that fabric reaches the field.1. Secure the sampleA controlled section of fabric is fixed into the test equipment.2. Increase water pressurePressure is raised progressively against the fabric.3. Record penetrationThe pressure reached before water passes through becomes the hydrostatic-head rating.Is 10,000mm waterproof enough for heavy rain?For equestrian turnout, 10,000mm is a very high waterproof benchmark and is designed for sustained wet-weather protection. Real-world performance still depends on fit, seams, wear, membrane condition and correct care of the rug.05The microclimate beneath the rugWhy breathability matters just as much as waterproofing.A horse keeps producing heat and moisture while grazing, walking and playing in the field. The rug therefore has to keep weather out without behaving like a sealed plastic bag.Outside inWaterproofing protects the horse against the outside elements.Inside outBreathability allows moisture vapour to move away from the horse through the rug and escape to the outside.A plastic sheet can keep water out, but does not make a good turnout rug.A horse rug has to manage a living, moving animal underneath it. The technical aim is a drier, more stable microclimate beneath the rug, not simply an impermeable barrier against rain.06MVTR breathability testingWhat does 10,000 g/m/24hr mean on a horse rug?MVTR Moisture Vapour Transmission Rate measures how much water vapour can pass through one square metre of fabric over 24 hours under the relevant test conditions.1mStandardised fabric areaUsing a defined area makes the result measurable and more meaningful than simply describing a fabric as breathable.24hrMeasurement periodA 10,000 g/m/24hr result indicates a high moisture-vapour transfer capacity under the relevant test method.Water vapourMoisture in vapour form generated beneath the rug as the horse produces heat and sweat.Moisture transferThe movement of that vapour through the technical fabric towards the outside environment.Breathable does not mean open meshA waterproof membrane can still permit vapour transfer while preventing liquid water droplets from passing inward.Fit still mattersEven excellent fabric cannot compensate for a rug that is badly fitted, heavily soiled or trapping heat through unnecessary insulation.07Inside the turnout fabric systemHow does a Premier Equine waterproof membrane work?The outer fabric, surface finish, membrane and lining should be read as a system. Each has a different role. On current Buster and Titan designs, that system goes further with two specialist membranes.From outer fabric to rug lining.01 SurfaceTeflon-coated outerHelps reduce staining and surface-water retention. Water beads on the fabric rather than immediately saturating the fibres.02 Waterproof barrierMicroporous waterproof + breathable membraneSits beneath the outer shell. The membrane is engineered to repel liquid water droplets while permitting airflow and moisture-vapour movement through the construction.03 Buster + TitanHydrophilic moisture-management membraneA second specialist membrane deeper in the construction helps attract, move and disperse moisture from the horses side of the rug. This layer is available in the Buster and Titan ranges.04 Inner surfaceBreathable shine enhancing liningSupports coat comfort and works with the membrane system rather than acting as the waterproof barrier itself.Why does water bead on a new rug?That is the surface repellency doing its job. It reduces wet-out and staining, but the membrane underneath is what provides the main resistance to water penetration.Why can a rug feel wet outside but dry inside?The outer surface can wet out after prolonged rain while the membrane continues to block water. Always assess the lining and the horse beneath before assuming the rug has leaked.08Consistency before constructionEvery roll of Premier Equine turnout fabric is tested before the rugs are made.A laboratory rating matters only if the material going into production continues to meet the required standard. Premier Equine therefore tests every roll of turnout fabric before it is cut and crafted into rugs.10Protecting technical performanceWhat can reduce a turnout rugs waterproofness and breathability?Technical fabric performance can decline if the surface, membrane or seams are damaged or contaminated. Regular checks are part of good rug management.Punctures and abrasionFencing, bites, rolling and rubbing can damage the outer and, if deep enough, the membrane beneath.Mud, grease and heavy soilingContamination can reduce surface repellency and interfere with moisture management. Clean according to the product instructions.Fabric conditioner or unsuitable detergentResidues can affect technical textiles. Use the care method stated for the individual rug and avoid fabric conditioner.Direct heatHigh heat can damage technical membranes. Air dry naturally rather than tumble drying or using direct heated drying systems.Loss of surface repellencyIf water no longer beads readily, an appropriate reproofing treatment can refresh surface repellency. It cannot repair a damaged membrane.Age and repeated flexingEvery turnout rug lives a hard life. Inspect high-stress areas, seams and the lining regularly rather than waiting for obvious leaking.11One weather standard. Different horses. Different fields.Every Premier Equine turnout rug starts with 10,000 / 10,000. So what are you actually choosing?You are choosing the rug around the horse: outer-fabric durability, fit, fill, neck coverage and construction. The lighter Stratus and Akoni options are not less waterproof because they sit at a different price point; Buster and Titan add tougher ballistic-nylon outers and more specialised construction for harder-working turnout environments.600D Diamond Triple Weave polyesterStratusFor riders wanting a lighter polyester outer with a published 10,000mm waterproof rating, waterproof and breathable membrane and Teflon-coated finish. A practical choice for everyday weather protection where maximum tear resistance is not the priority.Explore Stratus Rugs600D Diamond Triple Weave polyester Buster fit familyAkoniPairs a lighter 600D polyester outer and waterproof membrane with the original Buster pattern and extra-high shoulder gusset. Useful when you want more Buster-style shoulder room with a lighter outer fabric.Explore Akoni rugs840D Ballistic Nylon dual specialist membranesBusterMoves into a tougher ballistic-nylon outer with Premier Equines specialist dual-membrane construction. A strong everyday option for broader, active horses or turnout where tear, puncture and abrasion resistance matter alongside weather protection.Explore Buster rugs1680D Ballistic Nylon dual specialist membranesTitanThe most hard-wearing outer in the current Premier Equine turnout collection. Designed for demanding turnout where outer durability and technical weather protection both need to be high priorities.Explore Titan rugs12Need help choosing the complete rug rather than the fabric alone?Read the Premier Equine turnout rug guide13Frequently asked questionsWaterproof turnout rug questions riders ask before buying.What does 10,000mm waterproof mean on a horse rug?It is a hydrostatic-head rating. It means the fabric resisted water pressure equivalent to a 10,000mm column of water under the relevant test method before penetration occurred.Is 10,000mm waterproof good for a turnout rug?Yes. 10,000mm is a high technical standard for an equestrian turnout fabric and is suitable for demanding wet-weather use, provided the rug remains correctly fitted, intact and properly cared for.Are all Premier Equine turnout rugs built to the same waterproof and breathability benchmark?Yes. Premier Equine turnout fabrics are specified to 10,000mm waterproof and 10,000 g/m/24hr breathability across the collection. Price and range differences relate to factors such as outer-fabric durability, fit, fill, neck style and construction rather than stepping down the core weather-performance benchmark. Always check the individual product page for the latest specification.Do I need to buy a more expensive Premier Equine turnout rug to get better waterproofing?No. The core 10,000mm waterproof and 10,000 g/m/24hr breathability benchmark applies across Premier Equine turnout fabrics. Spend according to the horses actual needs: stronger ballistic-nylon outers, different fit profiles, fill weights, neck coverage and additional construction features.Which Premier Equine turnout rug is the most waterproof?Premier Equine turnout fabrics share the same 10,000mm waterproof benchmark, so the better question is which outer, fit and construction suit your horse and field. Stratus and Akoni use lighter 600D polyester outers; Buster uses 840D ballistic nylon; Titan uses 1680D ballistic nylon. Buster and Titan also use a specialist dual-membrane construction.What does 10,000 g/m/24hr breathability mean?It is an MVTR figure describing the amount of moisture vapour that can pass through one square metre of fabric over 24 hours under the relevant test method.Does a higher denier mean a rug is more waterproof?No. Denier describes the outer fabric construction and is mainly relevant to strength, abrasion resistance and durability. Waterproofness is measured separately using a test such as hydrostatic head.What does the Teflon coating do on a turnout rug?The Teflon finish helps reduce staining and surface-water retention and encourages water to bead on the fabric. The waterproof membrane beneath the outer remains the main barrier to liquid water penetration.Why does the outside of my waterproof rug feel wet?The face fabric can wet out after prolonged rain while the membrane underneath continues to resist water penetration. Check the lining and the horse beneath the rug before deciding the waterproof barrier has failed.How do I know if my turnout rug is leaking?If water is reaching the lining or the horse, inspect the rug for punctures, deep abrasion, seam damage or membrane damage. Surface wetting on its own is not proof of leakage.The Premier Equine waterproof principleProtecting horses since 2002.Premier Equine combines a 10,000mm waterproof standard with 10,000 g/m/24hr breathability and tests every turnout fabric roll before production. That is the weatherproof baseline. From there, choose the rug around the horse: 600D polyester for a lighter outer, 840D ballistic nylon for stronger everyday durability, or 1680D ballistic nylon when hard-wearing field protection is the priority.Explore horse turnout rugs Explore rug technology Stratus Akoni Buster TitanTechnical specifications supplied by the Premier Equine product team Updated September 2026.Always check the individual product page for the latest sizing, specification, materials, care guidance and availability. Waterproof and breathability figures are laboratory benchmarks; real-world performance also depends on fit, seams, wear, care, damage and environmental conditions.