If there's one person I always look to for effortlessly outdoorsy style, it's Kate Middleton. Whether she's visiting a garden, walking the countryside or taking on a charity challenge, the Princess of Wales has a knack for dressing for the elements without ever looking like she's trying too hard.

Another reason I keep an eye on her wardrobe? Well, I find it oddly refreshing to see how often she rewears her favourite pieces. Rather than chasing trends, Kate has built a wardrobe around high-quality outdoor essentials that work season after season – a philosophy that's just as sensible for gardeners in the market for protective clothing as it is for princesses.

That all came to a head for me during Kate Middleton's recent Three Peaks Challenge, which saw her raise some serious money for the Royal Marsden Cancer Charity. Spending long days outdoors in the height of summer demands clothing that's lightweight, breathable and practical, and every piece of hot-weather gear that Kate chose ticked those boxes and then some.

I Love Kate Middleton's Hot-Weather Gear

The more I looked at Kate Middleton's outfit for this challenge, the more I realised it would make for some pretty stunning gardening clothes, too (at least, it definitely would for me!).

Think about it; whether you're deadheading roses, weeding borders or hauling compost around on a hot afternoon, the same features that make clothing comfortable on a mountain – moisture-wicking fabrics, sun protection and freedom of movement – are just as valuable in the garden.

So, if you're wondering what to wear while gardening during a heatwave (especially as a dress made of ice cubes isn't an option), I'd happily suggest you make like me and take inspiration from Kate Middleton's outfit. Especially as most of the key pieces are available on Amazon, making it surprisingly easy to recreate her timeless outdoorsy vibe.

1. Fjällräven Abisko Wool Top

If there's one piece I'd beg, borrow, and steal from Kate Middleton's outfit first, it's her Fjällräven Abisko top.

Made from a lightweight merino wool blend, it's naturally breathable, moisture-wicking and odor-resistant – all qualities that make a real difference when you're gardening in warm weather.

The golden goose, though? Why, the fact that it also regulates body temperature surprisingly well, helping you stay comfortable whether you're working in full sun or desperately trying to stick to pruning into the shade.

2. HydraPak Polar Sport Insulated Water Bottle

It's easy to lose track of how much water you're drinking when you're immersed in the garden, especially during a heatwave. Don't be that person, and be sure to keep a bottle to hand.

Kate Middleton's insulated Polar Sport bottle helps keep water cooler for longer, making it much easier to stay hydrated through an afternoon of pruning, planting or watering.

3. The North Face Summit Series Pacesetter Shorts

Gardening involves more bending, stretching and kneeling than most workouts, so comfortable shorts are a must.

Kate Middleton's lightweight running shorts are on the pricier side, sure, but they are designed to move with you while drying quickly if you work up a sweat, making them an unexpectedly practical choice for summer gardening.

4. Fjällräven Logo Cap

No summer gardening outfit feels complete without a good cap; it keeps you from squinting into the sun, for starters, and it helps keep the sensitive skin of your face shaded, too.

Naturally, Kate Middleton doesn't just do the classic baseball cap; she wore a stylish Fjällräven version during the challenge. Which means, yes, you can ooze understated Scandinavian vibes while helping shade your face from the strongest midday sun.

5. SCARPA Terra GTX Hiking Boots

These are probably the one item I'd reserve for heavier jobs rather than everyday gardening. If you're clearing brambles, moving paving slabs or tackling uneven ground, supportive hiking boots offer excellent grip and protection.

Oh sure, Kate Middleton favors a stylish pair of hiking boots from Scarpa. Still, I'd be tempted to swap them for a pair of breathable garden clogs for lighter summer jobs.

Look, as I've said already, what I like most about Kate's outdoor wardrobe isn't that it's fashionable, but that it's functional. Instead of buying separate outfits for every activity, she invests in well-made pieces that can be worn again and again, whether she's walking, hiking or spending time outdoors.

That's an approach more gardeners could embrace. A breathable merino top, comfortable shorts, a reliable cap and a reusable water bottle aren't just useful for summer hikes or trips to the gym; they'll serve you just as well when you're spending a sunny weekend in the garden.

Now, if you'll excuse me, I have some hot-weather gear to add to basket. I'll see you on the other side...