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Castelli Core Mesh Men's Sleeveless Base Layer

$34.96 $49.95 30% off

Item # CST2598

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  • White, XXL ($34.96)
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Item # CST2598

It's like a shirt made out of air.

This is the sleeveless version of Castelli's Core Mesh Base Layer. And as with the short sleeve version, it incorporates an update to the classic fishnet style design. The older design used the holes of what felt like real fishnet in order to trap air between the skin and the second layer of clothing.

However, with the new fully-open mesh design, it still serves to hold the jersey off of the skin. Essentially, this creates a layer of air between your skin and the jersey in order to help you maintain a constant body temperature. But, besides these thermo-regulating properties, the improvements that Castelli brings to the table are several. The mesh is made from a polyester hollow core fiber that's soft-to-the-touch, efficiently wicks away moisture, and has ample stretch. In terms of shape, Castelli calls this 'body wrap,' because it's designed to wrap the body so that the gaps are only in the mesh, not between the mesh and the body. Accordingly, the entire base layer is mesh, save the hems and the 'V' that resides just below the collar.

The Core Mesh is cut long in order to stay comfortably tucked inside your shorts and bibs. Additionally, it was constructed with minimal seams for a maximum level of comfort.

The Castelli Core Mesh Sleeveless Base Layer is available in the color White and in the sizes Small/Medium, Large/X-Large, and XX-Large.

Tech Specs

Material:
[base layer] mesh
Fit:
anatomic
Antimicrobial:
no
Thumbholes:
no
Recommended Use:
road cycling
Manufacturer Warranty:
30 days

Size chart

Castelli

Men's Apparel
 Small Medium Large X-Large 2X-Large 3X-Large
Chest  35.5 - 37in
(90.2 - 94.0cm)
37 - 38.5in
(94.0 - 97.8cm)
39 - 41in
(99.1 - 104.1cm)
41 - 43in
(104.1 - 109.2cm)
43 - 45in
(109.2 - 114.3cm)
45 - 47in
(114.3 - 119.4cm)
Waist 29.5 - 31.5in
(74.9 - 80.0cm)
31 - 33in
(78.7 - 83.8cm)
33 - 35.5in
(83.8 - 90.2cm)
35.5 - 37.5in
(90.2 - 95.3cm)
38.5 - 40.5in
(97.8 - 102.9cm)
41 - 43in
(104.1 - 109.2cm)
Hips 36.5 - 38.5in
(92.7 - 97.8cm)
38 - 40in
(96.5 - 101.6cm)
40 - 42in
(101.6 - 106.7cm)
42 - 44in
(106.7 - 111.8cm)
44 - 46in
(111.8 - 116.8cm)
46 - 48in
(116.8 - 121.9cm)
Inseam
31.5in
(80.0cm)
32in
(81.3cm)
32.3in
(82.0cm)
32.8in
(83.3cm)
33in
(83.8cm)
34.8in
(88.4cm)
How to Measure:
For best results, take measurements over your underwear.
Chest:
Measure under your arms, around the fullest part of your chest.
Waist:
Measure around your natural waistline, keeping the tape a bit loose.
Hip:
Measure around the fullest part of your body at the top of your legs.
Inseam:
Using pants that fit well, measure the crotch seam to the bottom of the leg.

Reviews & Community

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Here's what others have to say...

1 5

Horrible fit

  • Familiarity: I've used it once or twice and have initial impressions

I should have paid closer attention to the negative reviews. Not only is this the worst cycling garment I?ve ever owned, it is the probably the worst cycling product I?ve ever owned. The fit is cartoonishly bad. It?s like Castelli confuses neck holes for arm holes; however, both are tight on this product. The neck hole is so incredibly tight I literally felt like I was being choked. Additionally, the fishnet fabric really irritated my nipples. I wore this garment one time, on a 50-mile ride. My nipples were so sensitive afterwards I had to wear band aids for several days afterwards. I?m 5?6 and a slightly muscular/lean build at 145 pounds. I wear 16 � dress shirts. The S/M was incredibly tight in the neck. The fit was such a distraction I was unable to evaluate the efficacy of the alleged cooling effect. 1 star is one star too many. Deserves a negative rating.

2 5

Very uncomfortable!!!!

  • Familiarity: I've used it once or twice and have initial impressions

Neckline is too small. Very uncomfortable.

2 5

The Neck Line Will Choke You

  • Familiarity: I returned this product before using it

I'm 5'9", 150lb and pretty lean and very fit. The S/M body fit was good, but the neckline nearly choked me. It's just way too narrow. The arm openings were also surprisingly tight, and I'm not exactly musclebound. Me thinks the sizing chart is off.

2 5

neck too small,

  • Familiarity: I returned this product before using it

no matter what body size, xl, 2-3 xl, SS or sleveless.
I'm 165, 5'9, 31 waist, 44 chest (push ups).. No one seems to know if there's a reason for the neck to be so tight. I have average 17", so they all went back. Looking at http://www.backcountry.com/castelli-airco-base-layer-short-sleeve-mens?ti=U2VhcmNoIFJlc3VsdHM6bWVucyBiYXNlIGxheWVyIHRvcHM6MTo0Om1lbnMgYmFzZSBsYXllciB0b3Bz
maybe will do the job. The open net did add some warmth as an extra layer next to skin though.

5 5

Helps me beat the heat

  • Familiarity: I've put it through the wringer

This base layer is must have for riding in warmer temps. Anything 80 degrees and above and this thing is on under my jersey. Essentially it's like having air conditioning during the ride because it creates room for air to flow between your jersey and your skin. The faster you ride, the cooler you feel. I own this model and the seamless version and prefer the seamless, but they both work great.

I wash this base layer by hand in the sink and air dry - do not put in the dryer. Also size down for a close to skin feel. You don't want this to fit lose on you. And be prepared for your wife to laugh at you and make fun of you if she sees you walking around the house with this on.

Quality Castelli construction too. I end up washing my right after my ride so I can have it ready again to ride the next day.

5 5

Works great

  • Familiarity: I've put it through the wringer

PROS: This fish-net like baselayer is very effective in warm weather exactly as Blder 7 describes above. This garment is designed to keep you cool in warm/hot weather by holding your jersey off your skin.

CONS: Opening for the head is very small. No big deal (though I hope Castelli fixes this in the next version). Just take care in working this baselayer over your head. ... Made in El Salvador (?).

Every serious rider should own a garment like this for riding in warm weather.

This vest baselayer and a summer jersey makes a GREAT combination in warm weather! Your skin will be totally dry even after a hard ride.