Exercise tends to require special clothing, and clothing can wear out, so spares will always come in handy. If your friend goes jogging, for instance, they'll welcome some extra running socks , or a head band to keep hair and perspiration out of their eyes. For a more substantial present, you could give a sweatshirt, running jacket or trainers, checking their size and style preference first. If cycling is their forte, they may appreciate a thermal, non-slip gloves, a neck warmer or waterproof over-trousers. For a swimmer, you could give a cap or goggles, adding full swimwear or an after-swim towel jacket for a larger gift.