What is the TeleGizmos 365 cover made of?

An outer shell of woven polyester with an acrylic coating, resistant to water, UV and mildew, over a multi-layer aluminised radiant barrier. The fabric shrinks or stretches by less than 1% and was tested against water at 40 PSI.

Can it stay on the telescope outside all year?

That is what the 365 series is for: it is sold for 24/7, 365-day protection in all weather. It keeps the weather out, but it cannot stop condensation forming underneath.

Which size do I need?

Each cover is cut for one kind of telescope and mount. Mine is the 12 inch SCT size: TeleGizmos' cover for 12 to 14 inch SCTs on an EQ mount has a 127 cm top line and a 152 cm height and takes a tube up to 99 cm long. Refractors, Newtonians, Dobsonians and fork-mounted SCTs have their own sizes.

Where can I buy the TeleGizmos 365 cover, and what does it cost?

The prices I recorded: £209 at First Light Optics (UK), awaiting stock; $199 at High Point Scientific (US), in stock.

What have I not tested on the TeleGizmos 365 cover?

I have not timed how long it lasts outdoors or measured the temperature under it.

365 Telescope Cover review: the TeleGizmos all-year cover

Where does it rank on our leaderboard

Nine of the 46 accessories on my board, against price
Rank	Accessory	Stars for Your Buck	Recorded UK price
1	GEMINI EAF	100 out of 100	£42
2	Generic Dew Heater	93 out of 100	£9
9	SVBONY Dew Heater	85 out of 100	£19
19	Green laser pen	76 out of 100	£10
21	365 Telescope Cover	74 out of 100	£209
27	ZWO 5x1.25″ Filter Wheel	65 out of 100	£198
44	Unihedron SQM-L Sky Quality Meter with Lens	32 out of 100	£149
45	SKY ROVER 2x54 Binoculars	28 out of 100	£139
46	365 Solar Telescope Cover	5 out of 100	£73

Contents

01 Where does it rank on our leaderboard
02 Specifications and features
03 In use
04 Should you buy it?
05 Questions and more about this review

In 30 seconds

Stars for Your Buck 74/100

Reviewed 26 Sep 2026 Updated 26 Sep 2026

Rank: #21 of 46 accessories
Verdict: Worth a look

Written by Damon Scotting 2 min read

Buy it if

Your telescope stays set up outside between nights and needs a cover made to live outdoors all year.
You want a cover cut for your kind of telescope, with drawstrings to hold it on in the wind.

Skip it if

You pack your telescope away after every session: a case or a cheaper dust cover does the job.
You need to stop condensation under the cover: it keeps the weather out but cannot prevent that.

My TeleGizmos 365, the 12 inch SCT size, is thick: the inside flaked a little, far less than my 365 solar cover, and the outer layer is thick enough that it won't matter long term.

Specifications and features

365 Telescope Cover reviewed #21 of 46
Recorded UK price	£209
Type	All-year telescope cover
Maker	TeleGizmos, 365 series
Outer layer	Acrylic-coated woven polyester; water, UV and mildew resistant
Inner layer	Multi-layer aluminised radiant barrier
Fastening	Drawstring at the hem, plus a drawstring and clips round the middle
Water test	Moisture penetration tested at 40 PSI
Shrink or stretch	Less than 1%
Size	12 inch SCT: 127 cm top line, 152 cm height, tubes up to 99 cm long
TeleGizmos warranty	One year from delivery, transferable

In use

The cover over my rig

The cover on my pier rig

Lifting the cover off

The rig coming out

Should you buy it?

74/100 Stars for Your Buck

Pros

Two layers: a water, UV and mildew-resistant acrylic-coated woven polyester outside, an aluminised radiant barrier inside.
Made to stay outside: sold for all-weather protection 24 hours a day, 365 days a year.
A drawstring at the hem and a second drawstring with clips round the middle hold it on.
It lifts off my pier rig in one piece.

Cons

The interior started to flake a little.
It keeps the weather out but cannot stop condensation forming underneath.
Expensive for a cover: £209 at First Light Optics for the 12 to 14 inch EQ-mounted SCT size.
Each cover is cut for one kind of telescope and mount, so a change of rig can mean a new cover.

Worth the money that you pay for it.

Two alternatives I have reviewed

Questions and more about this review

Reviewed by

Damon Scotting

The Telescope Man Verified

BSc (Hons) Physics with Astrophysics and Cosmology, Loughborough University PGCE / QTS, University of Nottingham

About Damon About Damon Damon Scotting is The Telescope Man. He holds a BSc (Hons) in Physics with Astrophysics and Cosmology from Loughborough University and a PGCE with QTS from the University of Nottingham, and taught physics in secondary schools before becoming an astronomy creator. He is a contributing writer for BBC Sky at Night Magazine and the author of 42 Wonders of Our Night Sky, and his photograph of the galaxy M100 with the dwarf planet Ceres was Highly Commended in the Astronomy Photographer of the Year 2024 competition run by Royal Observatory Greenwich. He has appeared on the BBC's Blue Peter. More than 750,000 people follow his astronomy channels on YouTube, Instagram and TikTok, and he has reviewed more than 140 telescopes, mounts, cameras, filters and accessories hands-on for this site. More about Damon · How I test · Damon's book

I review all kinds of gear: most of it I buy, some is gifted and some is loaned, and all of it is reviewed the same way. How this site is funded

Five questions, answered

Questions about the 365 Telescope Cover

Reviewed 26 September 2026 ·Updated 26 September 2026

I review all kinds of gear. Most of it I buy, some is gifted and some is loaned, and all of it is reviewed the same way: no company sees or approves a review before it is published. Shop links marked Ad are affiliate links: I earn a commission when you buy through them, at no extra cost to you. How this site is funded

What is the TeleGizmos 365 cover made of? An outer shell of woven polyester with an acrylic coating, resistant to water, UV and mildew, over a multi-layer aluminised radiant barrier. The fabric shrinks or stretches by less than 1% and was tested against water at 40 PSI. The specifications ↓
Can it stay on the telescope outside all year? That is what the 365 series is for: it is sold for 24/7, 365-day protection in all weather. It keeps the weather out, but it cannot stop condensation forming underneath. The specifications ↓
Which size do I need? Each cover is cut for one kind of telescope and mount. Mine is the 12 inch SCT size: TeleGizmos' cover for 12 to 14 inch SCTs on an EQ mount has a 127 cm top line and a 152 cm height and takes a tube up to 99 cm long. Refractors, Newtonians, Dobsonians and fork-mounted SCTs have their own sizes. The verdict, the readers and the sellers ↓
Where can I buy the TeleGizmos 365 cover, and what does it cost? The prices I recorded: £209 at First Light Optics (UK), awaiting stock; $199 at High Point Scientific (US), in stock. A record, not a live price The verdict, the readers and the sellers ↓
What have I not tested on the TeleGizmos 365 cover? I have not timed how long it lasts outdoors or measured the temperature under it.