Mares Mens Thermo Guard UPF 50+ Short Sleeve

Availability: Ships in 3-5 Working Days

The practical and stylish men's thermo guard 0.5mm short sleeve rash vest is designed for use as an extra protective layer worn under your existing wetsuit in cold waters. It can also be worn as a standalone garment to warmer waters.

The practical and stylish men's thermo guard 0.5mm short sleeve rash vest is designed for use as an extra protective layer worn under your existing wetsuit in cold waters. It can also be worn as a standalone garment to warmer waters.

Mares Rash Guard

Mares Mens Thermo Guard 0.5mm Short Sleeve

The practical and stylish men's thermo guard 0.5mm short sleeve rash vest is designed for use as an extra protective layer worn under your existing wetsuit in cold waters. It can also be worn as a standalone garment to warmer waters.

This thermo guard vest does not only keep you warm in cold water and cool in warm waters, it also protects the skin from biting and stinging critters and filters sun rays. Thanks to its thermal and UV protection, it’s also ideal for snorkeling, surfing, kayaking and for any other water-sport use.

Key Benefits

  • Cool Lightweight Material - This Mares Thermo Guard is a lightweight vest which is comfortable due to the cool lightweight material. The Mares Thermo Guard is easy to put on and provides UV protection and has comfortable contact on your skin.
  • Flat Seam Construction For Comfort - This vest has flat seam stitching which does not leave marks on your skin and also provides comfort.
  • UV Protection - This thermo guard provides UV protection, so when wearing this lightweight thermo guard the skin is more protected from sun rays whilst in the water.
  • 0.5mm Super Elastic Neoprene - The 0.5mm super elastic neoprene with matalite coating on the inside conducts heat, is easy to put on, and provides UV protection Flat stitch for comfortable contact on your skin.

Who is Mares Mens Thermo Guard 0.5mm Short Sleeve for?

The Mares Thermo Guard is for those looking for a vest which can be worn under wetsuits for extra protection and warmth, or a standalone vest for warmer waters. This makes this vest ideal for water-sports in different water temperatures. So if you like to go snorkeling, surfing, kayaking or other water sports this is a perfect vest. A must-have for all the active watersports enthusiasts, this long-sleeved vest dries quickly and is very easy to put on or take off.

Who are Mares?

Mares has become a worldwide leader in the distribution and manufacturing of state-of-the-art diving equipment, and continually sets new industry standards. With this comes a range of fantastic diving products for all levels of experience and skill.


  Chest (inch) Waist (inch) Height (inch) Chest (cm) Waist (cm) Height (cm)
Size 2 / Small 35-36 31-32 5'5" 89-92 79-81 165
Size 3 / Medium 37-39 33-34 5'7" 94-99 84-86 170
Size 4 / Medium Large 40-41 35-37 5'11" 92-104 89-94 180
Size 5 / Large 42-43 38-39 6'1" 107-109 97-99 185
Size 6 / Extra Large 44-45 40-42 6'3" 112-114 102-107 190
Size 7 / Extra Extra Large 46-48 43-44 6'5" 117-122 109-112 195
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We will take every effort to get you goods to you as efficiently and effectively as possible. All orders placed before 3pm will be shipped on the day of ordering subject to payment authorization and item availability.

Any items which are out of stock will be shipped as soon as they become available. If this causes a delay in your delivery, you will be notified and your order dispatched as soon as possible. If any items are unavailable, you will be contacted and offered a replacement or refund.

UK Delivery

If your order total is under £45 then you can choose one of the following options. Please take note of the availability on the product page and your confirmation email - if the availability is not 'In Stock' then the order will be shipped according to your delivery preference once it arrives into stock. For example if the availability is 'Ships in 3-5 Days' because it isn't in stock and has to come from Italy, and you've chosen 'DPD Next Day Delivery' then the item will take 3-5 working days and then be shipped on a next day delivery.

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  • 24 Hour Delivery - £4.95
  • DPD Next Day - £5.95 (Guaranteed Next Working Day + 1 Hour Delivery Window)

If your order total is over £45 then you can choose

  • Standard Delivery - FREE
  • 24 Hour Delivery - £4.95
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Please be aware that the prices above are for areas classed as "UK Mainland" by DPD which does NOT include offshore islands, Scottish highlands or Northern Ireland.

Non-UK Delivery

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We stock the vast majority of products listed on our website in our Whitley Bay superstore and warehouse and these products are available for same day dispatch & next day delivery.

Due to the huge quantity of products we stock, we offer the ability to backorder products which have gone out of stock and less popular products which we don't carry stock of.

Depending on the brand these backorder products can take anywhere between 1 and 10 days to arrive into stock. We estimate 3-5 working days on average but please be aware that products from Mares and Scubapro are shipped from Italy & Germany respectively so can take a little longer.

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You can return any product that is in an UNOPENED, RE-SALEABLE condition within 30 days as long as it is not marked as clearance. Please contact us before doing this so we can confirm this ahead of time - we recommend using a recorded delivery service for any returns as you will be responsible for ensuring it reaches us.

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  • Your order number
  • Your name & a contact telephone number
  • The reason for return

We will try and get your return processed as quickly as possible but if you don't send this information it can delay the return.


If you have ordered something and it doesn't fit then we can exchange for a more suitable size, stock permitting, but you will have to pay the return postage.


Our customers have the right to cancel their orders within 14 days unless their order has been dispatched. After the order has been dispatched, it is the customers responsibility to return the item in a saleable condition and receieve either a full or partial refund.