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Start with the layer you need: Silloth is a stretch performance polo; Hoy is a midweight merino-blend quarter zip. Compare the exact fabric, size and selected colour before ordering. These two men’s garments illustrate different jobs in a golf outfit; they do not represent every Glenmuir fabric or fit. If sizing is the uncertainty, start with the body measurements and fit checks below.
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Product specifications checked: 9 October 2026. Sizing information checked: 13 October 2026. This guide compares Glenmuir’s documented specifications and buying considerations. We have not carried out hands-on product testing.
Table of Contents
Choose a polo or a warmer layer
Want a stretch performance polo? Use Silloth as the reference below, then check the exact size and colour at Glenmuir. If comparing marketplace offers, match the model name rather than treating every Glenmuir polo as the same construction.
Check Silloth at Glenmuir Search Amazon UK for Silloth polos
Want a merino-blend quarter zip? Hoy is the midweight example in this guide. Establish its fit over your usual polo before choosing embroidery.
Check Hoy at Glenmuir Search Amazon UK for Hoy sweaters
Amazon links open searches; availability is not confirmed for every size or colour. Product pages can default to an unavailable variant, so check the selected combination and current returns terms.
| Reference | Verified distinction |
|---|---|
| g.SILLOTH | 88% polyester / 12% elastane performance polo |
| g.HOY | 50% merino / 50% COOLMAX polyester knitwear |
| Hoy finish | Water repellent, not a rain-shell specification |
| Personalisation | Resolve garment and size before embroidery |
Use Silloth as a performance-polo example
Glenmuir’s g.SILLOTH shirt lists 88% performance polyester and 12% elastane, with four-way stretch and a tailored anti-curl collar using an invisible stay. Those details make it a concrete reference when comparing a synthetic stretch polo with a different fabric or collar design. The manufacturer also describes moisture-wicking properties. This is product-specific information, not evidence that every Glenmuir shirt uses the same blend or that we have measured its comfort during a round. Glenmuir Silloth performance polo
Check how the polo works beneath knitwear
Try the collar beneath the neck opening of the sweater you expect to wear. A structured collar can sit differently from a softer knitted one, especially when a quarter zip is closed. Check the shirt’s hem and shoulder room while turning, then assess whether it bunches beneath the outer garment. The goal is a combination that feels comfortable through normal movement. A polo that looks neat on its own may still need another sweater cut or neck shape to make a useful layered outfit.
Read the actual Hoy blend
The g.HOY quarter-zip cable-rib sweater currently specifies 50% extra-fine merino and 50% COOLMAX performance polyester. It has a cable design at the front, a YKK zip and a water-repellent finish. The detailed composition is the appropriate reference; a generic wool-related icon elsewhere on a product page should not override that blend. Use the exact model when comparing stock across sellers, and avoid describing Hoy as a 100% merino sweater merely because merino appears in its title. Glenmuir Hoy merino-blend sweater
Compare knitwear by its place in the outfit
A midweight quarter zip such as Hoy should be assessed over the intended shirt and, if needed, under your rain shell. Check elbow space, cuff position and the area around the zip when you bend into an address posture. If you prefer a different neckline, compare it with the polo collar you use most often. The material name alone does not tell you how bulky the complete combination feels. Choose knitwear that works through the range of layers you actually wear.
Treat water repellency as a limited feature
Hoy’s documented finish is water repellent, so it should not be described as a fully waterproof outer garment. If rain protection is the missing role, investigate a separate specified shell. Decide whether you want to carry that shell over the sweater or choose a different thermal layer beneath it. This keeps the outfit’s functions clear: the polo, knitwear and rainwear can complement each other without any one piece being expected to handle every condition encountered during a British round.
Glenmuir sizing: measure your body, then check the layer
Glenmuir’s size guide uses actual body measurements, not the width of a shirt laid flat. For its men’s polo shirts, knitwear and outerwear, M corresponds to a 40–42in chest (102–107cm), and L to 42–45in (107–115cm). Use the complete Glenmuir size chart for the other sizes and the separate ladies’ measurements.
The manufacturer says its shirts generally fit more generously than its sweaters, midlayers and outerwear. Do not assume a comfortable polo means the same labelled size will feel identical over another layer. Measure around the fullest part of the chest, then try the sweater over the polo you intend to wear. Check shoulder movement and room at the elbows without pulling the hem upwards.
For a gift, confirm the exact garment and size before adding initials or a club crest. Glenmuir’s product page says personalised items cannot be returned or exchanged unless faulty. Establish the fit with an unpersonalised garment first if it is unfamiliar, and read the seller’s current terms before ordering.
Choose a maintainable, coordinated wardrobe
The published Silloth and Hoy information allows machine washing at 30°C, but consult the complete supplied labels for drying, handling and other restrictions. A shared temperature does not mean every polyester shirt and wool-blend sweater should receive identical treatment. Start with one colour that works with several existing trousers, then add a complementary layer once the fit is established. Keep the product names and composition notes for future comparisons. The most useful Glenmuir outfit is one whose fabric, collar, warmth and care requirements make sense together.
Related buying guides
Golf Apparel Brands UK: Compare Ranges, Fit and Buying Options. Golf Sweaters UK: Features, Fit and Buying Checks.