armor in water?


Savage Tide Adventure Path

Grand Lodge

does a mithril chain shirt +1 affect your swimming check at all? even though the armor check penalty is +0, doesn't the weight of the shirt pull you underwater?

Liberty's Edge

roll4initiative wrote:
does a mithril chain shirt +1 affect your swimming check at all? even though the armor check penalty is +0, doesn't the weight of the shirt pull you underwater?

Only if the total weight (including armour) carried by the character would be considered a medium or heavy load based on the character's Strength (see PHB, pages 161-162).

Otherwise, no. The entirety of the armour's effect on a character's ability to swim is double it's normal Armour Check Penalty. In this case, double of zero is still zero--chalk it up to really light metal and magic. So you can do the backstroke without penalty all you want. ;)

Grand Lodge

Azzy wrote:
roll4initiative wrote:
does a mithril chain shirt +1 affect your swimming check at all? even though the armor check penalty is +0, doesn't the weight of the shirt pull you underwater?

Only if the total weight (including armour) carried by the character would be considered a medium or heavy load based on the character's Strength (see PHB, pages 161-162).

Otherwise, no. The entirety of the armour's effect on a character's ability to swim is double it's normal Armour Check Penalty. In this case, double of zero is still zero--chalk it up to really light metal and magic. So you can do the backstroke without penalty all you want. ;)

Thanks! We're on day 36 of Sea Wyvyrn's Wake. Just need to know these petty things once in awhile! They're all doin' it doggy-style, oops, i mean doggy-paddle!


roll4initiative wrote:
We're on day 36 of Sea Wyvyrn's Wake... They're all doin' it doggy-style, oops, i mean doggy-paddle!

No doubt, after being on the boat that long... :/

The Exchange

I added a house rule that all clothing and cloth equipment you are carrying when swimming weighs double as well, so that may have an affect in terms of carrying capacity and weight limits.

Anyone who's ever tried to swim fully clothed will understand that soaked clothing will really drag you down in a hurry. And yes, this is in addition to any armor check penalties to swimming you may incur.


You need 16 lb of weight to give you firm footing on the bottom, so Mithral shirt is only 10 lb, so it isn't even enough to overcome your natural buoyancy by D&D rules, bit silly but so are most of the underwater combat and swimming rules in D&D. Best not to analyse to much.

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