For swimming
Aren astpack 2.1 Swim Bag, £49.98, wiggle.co.uk. Spacious, water resistant, well-ventilated and with comfortable padded straps for when it’s laden down with soggy swimwear, this nifty bag is packed with useful compartments to keep your make-up bag, change of clothes, phone, drink, shoes and laptop dry as a bone. You can even fit a kickboard in it!