All-Star Cobalt Umpire Skull Cap

SC900UMP All-Star Cobalt Umpire Skull Cap Side View

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The Cobalt™ Skull Cap or "Skully" is the first hard shell skull cap made just for umpires and designed in collaboration with MLB & MiLB.

Aimed against bat backswings and to add an additional layer of force reduction, the helmet is like a coach's helmet but with enhanced shape, padding and features for baseball and softball umpires.

The shortened bill functions just like an umpire plate/combo (4-stitch) cap. It will fit under all brand or style umpire mask and not just All-Star masks.


  • Shortened bill fits with plenty of space in any umpire mask
  • Tough and durable polycarbonate shell
  • Textured sand matte finish to grip traditional harness (no harness upgrade needed)
  • Augmented padding in key zones along sides, rear, and top for added protection against bats
  • Removable padding system is machine washable
  • Fitted S to XL sizes to fit most head sizes

Product Video

Official 2-Minute Review: All-Star Cobalt Umpire Skull Cap

Ty takes you behind the plate with @AllStarSportsVids innovative skull cap designed specifically for baseball and softball umpires.

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Official Reviews


Danny L.

Auburn, ME

February 17, 2021
Typically I’ve worn a Wilson Shock FX hockey style mask but the padding is no more so it was time to switch to a mask. I’ve been afraid to do so because I have a large head that a mask doesn’t fully protect. For reference I wear a size 8 New Era cap. I bought a Force3 mask that fully protects my face but left the top of my head exposed, so I tried the All-Star Cobalt Skull Cap and have not been disappointed. It fits great, the XL does fit larger than the advertised 7-5/8”, truly will fit a size 8 skull. The skull cap also has a textured, orange peel type of finish to it that really holds the masks harness into place with almost no movement. This skull cap looks great replacing the typical dirty, salt stained black cap I would otherwise wear if not for this skull cap. HIGHLY recommend for any umpire to try out, will not disappoint.

Michael K.

White Bear Lake, MN

February 7, 2021
As I have aged, I have paid more attention to concussion prevention and I thought it was time to try the All-Star Cobalt Umpire Skull Cap. When I first tried it on after I received it, it tended to slide forward when I put my Force3 mask on. A little adjustment to the front padding of the skull cap has solved that problem. I like that the inner pads can be removed and placed in different positions for a custom fit. The marks that have appeared on the finish of the skull cap when I have been adjusting fit have rubbed off with water and a towel. Looking forward to using it in a game situation in the next month or so.

Peter C.

Auckland, New Zealand

February 2, 2021
Would not normally be my preference but we have a couple of Diamonds with lose netting over home plate to stop ball flying into neighbors properties. Balls come straight down on plate. I found it comfortable to use and very effective.

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Questions About This Product

Q: Any opinion on using the Cobalt skull cap with a Force 3 mask? Have you heard of any fit issues between the two?
– John Porada

These two pieces should not present any issues fitting together. The mask harness of the Force 3 Defender will accommodate the increased size of the skull cap very easily. The Force 3 Defender mask, having been originally designed for catchers in mind has the perfect shape to rest on a skull cap. The effectiveness of the Force 3 S3 spring assembly will be greatly enhanced with the additional protective layer of the All-Star Cobalt Skull Cap.

– Ty Unthank
Communication & Service Specialist, Pro Umpire School Graduate and Umpire

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WARNING: Participants in any sports activity assume risk of injury. This equipment may be used to help aid in preventing or reducing the extent of injury. No equipment can guarantee umpire or player safety from injury during participation, and use of this equipment carries no such guarantee. Do not use any umpire equipment that is damaged in any way.