Venum YKZ21 Long Sleeve Rash Guard
Venum YKZ21 Long Sleeve Rash Guard - Black / Small is available for Pre-Order. Stock is incoming and will be reserved for you.
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Venum's men's rashguards — long-sleeve and short-sleeve — share a single compression-fit table. The cut is deliberately tight to deliver a second-skin feel that locks the muscles in place during BJJ, MMA, no-gi grappling and rolling. The sleeves and torso are cut from the same stretch panels, so the same chart applies whether you're picking up a long-sleeve rashguard, a short-sleeve compression top or a tank-style cross-training piece from the Venum collection.
Fit tip: Rashguards are compression apparel — follow the size matching your measurements for that locked-in feel. For a lighter compression, choose one size above. If you're between two sizes, favour the chest measurement as your reference point.
| Size | Chest | Waist | Front Length | Sleeve Length |
|---|---|---|---|---|
| XXS | 34.6 - 35.8 in | 33.4 - 34.6 in | 19.3 in | 25.2 in |
| XS | 36.2 - 37.4 in | 35 - 36.2 in | 19.7 in | 26 in |
| S | 37.8 - 39 in | 36.6 - 38.2 in | 20.1 in | 26.8 in |
| M | 39.4 - 40.6 in | 38.6 - 39.5 in | 20.9 in | 27.6 in |
| L | 40.9 - 42.1 in | 40.2 - 41.3 in | 21.5 in | 28.3 in |
| XL | 42.5 - 45.3 in | 41.7 - 42.9 in | 22 in | 28.7 in |
| XXL | 45.7 - 49.2 in | 43.3 - 44.5 in | 22.6 in | 29.5 in |
Venum's published values are in inches — multiply by 2.54 to convert to cm if needed.
How to measure
- Chest: Measure around the fullest part of your chest, keeping the tape horizontal under the armpits.
- Waist: Measure at the narrowest point of your natural waistline, just above the hip bones.
- Front length: From the top of the shoulder seam down to the bottom hem.
- Sleeve length: From the centre back of the neck, across the shoulder, and down to the wrist with the arm slightly bent.
Not sure which size to pick? Sizing rashguards is forgiving thanks to the stretch fabric — if you're between sizes, go down for tighter compression or up for a more relaxed feel. Browse the full Venum collection for matching shorts, spats and compression gear.
Description
Description
Ground-work protection for BJJ, MMA and grappling customers who need a rash guard that supports repeated training. The compression fit helps reduce friction on the mat, while mesh inserts assist moisture management during hard rounds. See the Venum collection and rash guards category for matching stock lines.
- Long sleeve compression rash guard for mat work
- 81% polyester / 19% elastane main fabric
- Mesh inserts improve breathability
- Built to help protect against skin friction in grappling
- Compression fit for training support
- Suitable for BJJ, MMA, grappling and cross training
A sensible line for academies and retailers serving grapplers who expect durable, functional kit rather than fashion-led sportswear.
Browse the full Rash Guards range at Bytomic Trade & Wholesale.
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DELIVERY & RETURNS
- Free UK Delivery available on qualifying orders over £200 (ex VAT)
- Easy Returns within 30 days.




